This page intentionally left blank 0i-0iv_FM_288152.indd Page Ai 9/13/08 5:46:32 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... P rinter P DF 0i_0iv_FM_288152.indd Page i 6/16/09 1:37:16 PM u-s012 /Volumes/111-1/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_F... Copyright © by The McGraw-Hill Companies, Inc. All rights reserved. Except as permitted under the United States Copyright Act, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without prior permission of the publisher. Send all inquiries to: Macmillan/McGraw-Hill 8787 Orion Place Columbus, OH 43240-4027 ISBN: 978-0-02-288152-8 MHID: 0-02-288152-2 Printed in the United States of America. 2 3 4 5 6 7 8 9 021 12 11 10 09 P DF P ass 0i-0iv_FM_288152.indd Page Aii 9/13/08 5:46:44 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... CHAPTER 1 Plants Are Living Things . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Lesson 1 Learning About Living Things . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Lesson 2 Parts of Plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Lesson 3 Different Plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 CHAPTER 2 Plants Grow and Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Lesson 1 Flowers, Fruits, and Seeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Lesson 2 How Plants Grow and Change . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Lesson 3 Plants Live in Many Places . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 CHAPTER 3 All About Animals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Lesson 1 All Kinds of Animals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Lesson 2 What Animals Need to Live . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Lesson 3 How Animals Eat Food . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Lesson 4 Animals Grow and Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 CHAPTER 4 Places to Live . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Lesson 1 Land Habitats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Lesson 2 Water Habitats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Lesson 3 Plants and Animals Live Together . . . . . . . . . . . . . . . . . . . . . . . 60 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 ii P rinter P DF 0i-0iv_FM_288152.indd Page Aiii 9/13/08 5:46:45 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... CHAPTER 5 Looking at Earth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Lesson 1 What Earth Looks Like . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Lesson 2 Rocks and Soil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Lesson 3 Changing the Land . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 CHAPTER 6 Caring for Earth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Lesson 1 Earth’s Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Lesson 2 Using Earth’s Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Lesson 3 Saving Earth’s Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 CHAPTER 7 Weather and Seasons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Lesson 1 Weather All Around Us . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Lesson 2 The Water Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Lesson 3 Spring and Summer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Lesson 4 Fall and Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 CHAPTER 8 The Sky . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Lesson 1 The Sky Above . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Lesson 2 Earth Moves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Lesson 3 Earth’s Neighbors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 iii P rinter P DF 0i-0iv_FM_288152.indd Page Aiv 9/13/08 5:46:46 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... CHAPTER 9 Matter Everywhere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Lesson 1 Describing Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Lesson 2 Solids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Lesson 3 Liquids and Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 CHAPTER 10 Changes in Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Lesson 1 Matter Can Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Lesson 2 Making Mixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Lesson 3 Heat Can Change Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 CHAPTER 11 On the Move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155 Lesson 1 Position and Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Lesson 2 Pushes and Pulls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Lesson 3 Simple Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Lesson 4 Magnets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Vocabulary Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 CHAPTER 12 Energy Everywhere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Lesson 1 Energy and Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Lesson 2 Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Lesson 3 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 Lesson 4 Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 Vocabulary Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 iv P rinter P DF 001_005_C01_L01_288152.indd Page 1 9/11/08 4:13:44 AM u-s087 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 1 Plants Are Living Things What do you know about plants? Vocabulary living a thing that needs food, air, and water to live nonliving a thing that does not need food, water, and air to live leaves plant parts that make food stem part of a plant that holds it up roots plant parts that hold a plant in the ground 1 Chapter 1 P rinter P DF 001_005_C01_L01_288152.indd Page 2 9/11/08 4:13:49 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Learning About Living Things What are living and nonliving things? Plants and animals are living things. Living things need food, water, and air. They grow and change. Nonliving things do not need food, water, and air. They do not grow and change. Living and Nonliving Things 2 Plants Are Living Things P rinter P DF 001_005_C01_L01_288152.indd Page 3 9/11/08 4:13:56 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check Circle all correct answers. 1. Which of these are living things? tree dog rock 2. Which of these are nonliving things? grass desk book Read a Photo What is a living thing you see? 3 Chapter 1 • Lesson 1 P rinter P DF 001_005_C01_L01_288152.indd Page 4 9/11/08 4:14:00 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Why are plants living things? Plants grow and change. They make new plants. Plants need food, water, and air to live. rice plants ↑ Plants need water. cactus ↑ Plants need air. 4 Plants Are Living Things P rinter P DF 001_005_C01_L01_288152.indd Page 5 9/11/08 4:14:24 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Plants use water, air, and sunlight to make food. Plants need sunlight. → sunflower Quick Check Write two things a plant needs to live. 3. 4. -Review Summaries and quizzes online at www.macmillanmh.com 5 Chapter 1 • Lesson 1 P rinter P DF 006_009_C01_L02_288152.indd Page 6 9/11/08 4:15:02 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Parts of Plants What are the parts of plants? Plants have parts that help them live. Strawberry Plant leaf stem Read a Diagram roots Which plant part is in the ground? See the parts of a strawberry plant at www.macmillanmh.com 6 Plants Are Living Things P rinter P DF 006_009_C01_L02_288152.indd Page 7 9/11/08 4:15:06 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Plants have leaves, stems, and roots. These parts can look different. stem leaf Quick Check Write three parts of a plant. roots 5. 6. 7. 7 Chapter 1 • Lesson 2 P rinter P DF 006_009_C01_L02_288152.indd Page 8 9/11/08 4:15:11 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What do plant parts do? Leaves make food. They use sunlight, water, and air. Stems hold up the plant. They move water and food to other plant parts. stem leaf roots 8 Plants Are Living Things P rinter P DF 006_009_C01_L02_288152.indd Page 9 9/11/08 4:15:17 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Roots hold the plant in the ground. Roots take in water. Plant parts help a plant live. → Quick Check Circle all correct answers. 8. Leaves use ground to make food. sunlight air -Review Summaries and quizzes online at www.macmillanmh.com water 9 Chapter 1 • Lesson 2 P rinter P DF 010_014_C01_L03_288152.indd Page 10 9/11/08 4:16:06 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Different Plants How are plants different? All plants are not the same color. All plants are not the same size. morning glory gerbera daisy lily of the valley ↑ Plants have different flowers, leaves, and stems. 10 Plants Are Living Things P rinter P DF 010_014_C01_L03_288152.indd Page 11 9/11/08 4:16:21 AM u-s087 Some plants have thin stems. /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Tall Trees Trees have thick stems. Some plants are tall. Quick Check 9. Draw two leaves that are different. Read a Photo What parts of these trees do you see? 11 Chapter 1 • Lesson 3 P rinter P DF 010_014_C01_L03_288152.indd Page 12 9/11/08 4:16:30 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Which plant parts can you eat? You may eat some plant parts today. Be careful! Some plant parts can make you sick. ↑ Lettuce is a leaf. ↑ A coconut is a seed. 12 Plants Are Living Things P rinter P DF 010_014_C01_L03_288152.indd Page 13 9/11/08 4:17:28 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... You can eat some roots or leaves. You can eat some seeds or fruit. Quick Check 10. Draw a picture of a plant part you eat. ←A carrot is a root. -Review Summaries and quizzes online at www.macmillanmh.com 13 Chapter 1 • Lesson 3 P rinter P DF 010_014_C01_L03_288152.indd Page 14 9/11/08 4:17:38 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review leaves roots stem Draw a picture of a plant. Use the words in the box to label the parts. Tell what you know. 14 Chapter 1 • Lessons 1–3 • Vocabulary Review P rinter P DF 015_019_C02_L01_288152.indd Page 15 9/11/08 4:18:51 AM u-s087 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 2 Plants Grow and Change How do plants change? Vocabulary flower a plant part that makes seeds seed a plant part that grows into a new plant desert a dry place rain forest a hot and wet place Arctic a cold and icy place near the North Pole 15 Chapter 2 P rinter P DF 015_019_C02_L01_288152.indd Page 16 9/11/08 4:19:07 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Flowers, Fruits, and Seeds Why are flowers important? Some plant parts help make new plants. A flower is a plant part that makes seeds. A seed can grow into a new plant. flowers peach trees 16 Plants Grow and Change P rinter P DF 015_019_C02_L01_288152.indd Page 17 9/11/08 4:19:18 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some plants have fruit. A fruit grows around a seed. A fruit keeps the seed safe. fruit seed Quick Check Label the flower and the fruit. 1. 2. 17 Chapter 2 • Lesson 1 P rinter P DF 015_019_C02_L01_288152.indd Page 18 9/11/08 4:19:28 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are the parts of a seed? Seeds need water, light, and a place to grow. Seeds have parts. Look Inside a Seed This will grow to be a plant. This is food for the new plant. The outside of the seed keeps it safe. Read a Diagram Which part of a seed keeps it safe? 18 Plants Grow and Change P rinter P DF 015_019_C02_L01_288152.indd Page 19 9/11/08 4:19:38 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Animals and wind can move seeds. The seeds will grow in new places. Animals move seeds. → Quick Check Circle the answer. 3. Seeds need milk to grow. water -Review Summaries and quizzes online at www.macmillanmh.com 19 Chapter 2 • Lesson 1 P rinter P DF 020_023_C02_L02_288152.indd Page 20 9/11/08 4:20:23 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 How Plants Grow and Change How do plants grow from seeds? A plant can start as a seed. The seed gets water from the soil. It grows into a new plant. The new plant looks like the plant it came from. The new plant will make more seeds. Life Cycle of a Bean Plant seed seed with roots sprouting seed 20 Plants Grow and Change P rinter P DF 020_023_C02_L02_288152.indd Page 21 9/11/08 4:20:38 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check Circle the answer. 4. A plant can begin as a seed . fruit 5. A seed can grow into a new seed . new plant Watch the life cycle of a bean plant at www.macmillanmh.com Read a Diagram new plant What does this plant start as? 21 Chapter 2 • Lesson 2 P rinter P DF 020_023_C02_L02_288152.indd Page 22 9/11/08 4:21:01 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How else do plants grow? Some plants do not grow from seeds. Some plants grow from plant parts. Water helps some parts grow into new plants. stem coleus plant roots ↑ Roots can grow from a plant part. 22 Plants Grow and Change P rinter P DF 020_023_C02_L02_288152.indd Page 23 9/11/08 4:21:10 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... new plant ↑ New potato plants can grow from a potato. Quick Check 6. Draw a picture to show how a stem can grow a new plant. -Review Summaries and quizzes online at www.macmillanmh.com 23 Chapter 2 • Lesson 2 P rinter P DF 024_028_C02_L03_288152.indd Page 24 9/11/08 4:21:28 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Plants Live in Many Places Where do plants live? Plants live in many places. Some plants live in the desert. A desert is a dry place. ↓ These plants have parts that hold water. desert 24 Plants Grow and Change P rinter P DF 024_028_C02_L03_288152.indd Page 25 9/11/08 4:21:44 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... A rain forest is hot and wet. The plants can get a lot of water. Big, pointy leaves let extra water fall off the plants. Rain Forest Plants Read a Photo How do these leaves look? Quick Check Fill in the blanks. 7. A desert is . 8. A rain forest is hot and . 25 Chapter 2 • Lesson 3 P rinter P DF 024_028_C02_L03_288152.indd Page 26 9/11/08 4:21:52 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How can plants survive in the cold? The Arctic is icy and cold. The Arctic is near the North Pole. Arctic plants live in groups. They keep each other safe from the wind. arctic plants Arctic 26 Plants Grow and Change P rinter P DF 024_028_C02_L03_288152.indd Page 27 9/11/08 4:22:05 AM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Arctic plants are short. This helps them live in the cold. Quick Check 9. Draw a picture of some arctic plants. -Review Summaries and quizzes online at www.macmillanmh.com 27 Chapter 2 • Lesson 3 P rinter P DF 024_028_C02_L03_288152.indd Page 28 9/12/08 4:31:18 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Draw a line from each word to the picture that matches. 1. desert 2. rain forest 3. Arctic Tell what you know. 28 Chapter 2 • Lessons 1–3 • Vocabulary Review P rinter P DF 029_035_C03_L01_288152.indd Page 29 9/6/08 2:08:11 PM u-s087 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 3 All About Animals What do you know about animals? Vocabulary mammal an animal with hair or fur bird an animal that has two legs, two wings, and feathers reptile an animal with dry skin and scales amphibian an animal that lives on land and in water fish an animal that has gills and fins insect an animal with six legs 29 Chapter 3 P rinter P DF 029_035_C03_L01_288152.indd Page 30 9/6/08 2:08:21 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 All Kinds of Animals What are some types of animals? Mammals have hair or fur. They can hop, walk, swim, or fly. porcupine giraffes ↑ Fur can keep mammals warm and dry. ← The parent takes care of the baby. 30 All About Animals P rinter P DF 029_035_C03_L01_288152.indd Page 31 9/6/08 2:08:44 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Birds have feathers. They have two legs and two wings. Most birds can fly. ↑ Many birds lay eggs in a nest. ← A beak helps a bird eat. Quick Check 1. What kind of animal has hair or fur? 2. What kind of animal has feathers? 31 Chapter 3 • Lesson 1 P rinter P DF 029_035_C03_L01_288152.indd Page 32 9/6/08 2:08:48 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are reptiles and amphibians? Reptiles have dry skin. Their skin has scales. snake Some reptiles have shells. Most reptiles lay eggs. Snakes have scales. → turtle ↑ Turtles have shells. 32 All About Animals P rinter P DF 029_035_C03_L01_288152.indd Page 33 9/6/08 2:08:51 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Amphibians live in water and on land. Their skin is soft and wet. Some hatch from eggs in water. Frogs have wet skin. → frog Quick Check 3. Draw a reptile. 33 Chapter 3 • Lesson 1 P rinter P DF 029_035_C03_L01_288152.indd Page 34 9/6/08 2:08:59 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are some other types of animals? Fish live under water. Most fish have scales. Gills help them breathe. Fins help them swim. ↑ Fish swim in schools. Parts of a Fish fins Read a Diagram What helps a fish swim? gills 34 All About Animals Watch how fish move and breathe at www.macmillanmh.com P rinter P DF 029_035_C03_L01_288152.indd Page 35 9/6/08 2:09:10 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Insects are animals with six legs. butterfly They have bodies divided into three parts. Most insects lay eggs. ants Quick Check Circle the answer. 4. A fish has 6 legs . gills fur 5. An insect has 6 legs gills . fur -Review Summaries and quizzes online at www.macmillanmh.com 35 Chapter 3 • Lesson 1 P rinter P DF 036_039_C03_L02_288152.indd Page 36 9/6/08 1:52:11 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 What Animals Need to Live What do animals need to live? bear Animals are living things. They need food, water, and air. ↑ This bear eats plants. Zebras’ Needs Read a photo watering hole What are the zebras doing in this picture? 36 All About Animals P rinter P DF 036_039_C03_L02_288152.indd Page 37 9/6/08 1:52:28 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Animals live in different places. All animals need a safe place to live. These raccoons live in a log. → raccoons Quick Check 6. Draw an animal. Show what the animal needs to live. 37 Chapter 3 • Lesson 2 P rinter P DF 036_039_C03_L02_288152.indd Page 38 9/6/08 1:52:40 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How do animals meet their needs? parrot Animals use wings, legs, or fins to move. Animals use eyes or noses to find food. ↑ Wings help this bird fly. mountain lion ← Legs help this lion run. 38 All About Animals P rinter P DF 036_039_C03_L02_288152.indd Page 39 9/13/08 6:28:20 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Gills or lungs help animals get air. Dolphins have lungs. → dolphin Quick Check 7. Circle the body parts that help animals move. lungs eyes legs noses wings gills ears fins -Review Summaries and quizzes online at www.macmillanmh.com 39 Chapter 3 • Lesson 2 P rinter P DF 040_043_C03_L03_288152.indd Page 40 9/6/08 1:58:48 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 How Animals Eat Food What animals eat plants? Animals need food to live. Some animals eat only plants. A horse eats plants. ↓ horse 40 All About Animals P rinter P DF 040_043_C03_L03_288152.indd Page 41 9/6/08 1:58:56 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... These animals have flat teeth. Flat teeth help them eat plants. A rabbit eats plants. → rabbit Quick Check Name an animal that eats plants. 8. 41 Chapter 3 • Lesson 3 P rinter P DF 040_043_C03_L03_288152.indd Page 42 9/6/08 1:59:11 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What animals eat meat? Teeth Some animals eat other animals. These animals have sharp teeth. Read a Photo ↓ Tigers eat meat. What do you see that helps an animal eat meat? tiger 42 All About Animals P rinter P DF 040_043_C03_L03_288152.indd Page 43 9/6/08 1:59:30 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Sharp teeth help animals eat meat. shark Tigers and sharks both eat meat. Sharks have sharp teeth. → Quick Check Write what these animals eat. 9. tiger lion shark -Review Summaries and quizzes online at www.macmillanmh.com 43 Chapter 3 • Lesson 3 P rinter P DF 044_050_C03_L04_288152.indd Page 44 9/6/08 2:00:20 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 4 Animals Grow and Change How do mammals grow and change? Animals are born and grow older. They make other animals and then die. This is their life cycle. Mammals give birth to live young. Many baby mammals can not see or walk when they are born. ↓ This is the life cycle of a fox. newborn fox baby fox 44 All About Animals P rinter P DF 044_050_C03_L04_288152.indd Page 45 9/6/08 2:00:31 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Their mothers take care of them. Baby mammals grow up. They look like their parents. Quick Check Write the answers. 10. What will a baby fox look like when it grows up? 11. Who takes care of a newborn fox? young fox adult fox 45 Chapter 3 • Lesson 4 P rinter P DF 044_050_C03_L04_288152.indd Page 46 9/6/08 2:02:29 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How do birds grow and change? Baby birds hatch from eggs. They do not have feathers. They can not fly. Their parents take care of them. Their feathers will grow in. Then the birds can fly. Life Cycle of a Bird ↓ A bird hatches from an egg. ↓ This bird is 3 weeks old. 46 All About Animals P rinter P DF 044_050_C03_L04_288152.indd Page 47 9/6/08 2:02:36 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check Circle the answer. 12. Birds grow feathers . fur scales 13. Birds as they grow. change stay the same ↓ This bird is 5 weeks old. This bird is an adult. → Read a Diagram What part of this bird changes? 47 Chapter 3 • Lesson 4 P rinter P DF 044_050_C03_L04_288152.indd Page 48 9/6/08 2:02:44 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How do frogs grow and change? Frogs lay eggs in water. Baby frogs are called tadpoles. They hatch from eggs. Tadpoles have a tail and gills. ↓ This is the life cycle of a frog. 7 weeks old 2 weeks old frog eggs tadpole 48 All About Animals P rinter P DF 044_050_C03_L04_288152.indd Page 49 9/12/08 5:30:45 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Older tadpoles grow legs and lungs. They grow up to be frogs. Frogs can live on land. Quick Check Put these stages of a frog’s life cycle in order. 14. tadpole frog egg adult frog First Next Last -Review Summaries and quizzes online at www.macmillanmh.com 49 Chapter 3 • Lesson 4 P rinter P DF 044_050_C03_L04_288152.indd Page 50 9/6/08 2:03:58 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review 1. Circle the animal that has feathers and can fly. frog tiger bird 2. Circle the animal that has hair or fur. mammal insect fish 3. Circle the animal that has fins. bird fish reptile 4. Circle the animal that has six legs. bird mammal insect Tell what you know. 50 Chapter 3 • Lessons 1–4 • Vocabulary Review P rinter P DF 051_055_C04_L01_288152.indd Page 51 9/6/08 1:45:25 PM u-s087 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 4 Places to Live Where do animals live? Vocabulary habitat a place where animals and plants live grassland a dry place with a lot of grass forest a place with many trees lake water with land around it ocean salty water that can be very deep food chain the order of how living things get food 51 Chapter 4 P rinter P DF 051_055_C04_L01_288152.indd Page 52 9/6/08 1:45:52 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Land Habitats What is a grassland habitat? Animals live where they can find the things they need. The place where animals and plants live is a habitat. Animals have body parts that help them stay safe in their habitats. Long necks help giraffes look out for danger. → 52 Places to Live P rinter P DF 051_055_C04_L01_288152.indd Page 53 9/6/08 1:46:00 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... A grassland is a dry place. It has lots of grass. Many grassland animals eat grass. Grass also helps some animals hide. ← Prairie dogs can dig holes and hide to stay safe. Quick Check 1. Draw a grassland habitat and an animal that lives there. 53 Chapter 4 • Lesson 1 P rinter P DF 051_055_C04_L01_288152.indd Page 54 9/6/08 1:46:09 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is a forest habitat? A forest is a place with many trees. Trees grow tall in a forest. Smaller plants grow under the trees. ↑ Deer live in a forest. ↑ A tree is a good home for a raccoon. 54 Places to Live P rinter P DF 051_055_C04_L01_288152.indd Page 55 9/6/08 1:46:30 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some animals get food from the trees. Woodpecker Some animals make a home in the trees. A forest is their habitat. Read a Photo What could a woodpecker find in this tree? Quick Check List two animals that live in a forest. 2. 3. -Review Summaries and quizzes online at www.macmillanmh.com 55 Chapter 4 • Lesson 1 P rinter P DF 056_059_C04_L02_288152.indd Page 56 9/12/08 4:36:13 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Water Habitats What is a lake habitat? A lake is water with land around it. Some plants grow in and around the water. Lake Habitat Read a Photo What living things do you see? 56 Places to Live P rinter P DF 056_059_C04_L02_288152.indd Page 57 9/6/08 1:48:21 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Animals can find food in and around a lake. Their homes may be in or near the lake. A lake is their habitat. ↑ Beavers build dams to make homes. Quick Check List two ways animals use a lake habitat. 4. 5. 57 Chapter 4 • Lesson 2 P rinter P DF 056_059_C04_L02_288152.indd Page 58 9/6/08 1:48:32 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is an ocean habitat? An ocean has salty water. tropical fish This habitat is very big and deep. Many plants, mammals, and fish live in the ocean. ↑ Fish live in the ocean. orca whale 58 This mammal lives in the ocean and eats other animals. ↓ seaweed Places to Live P rinter P DF 056_059_C04_L02_288152.indd Page 59 9/6/08 1:48:56 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some ocean animals eat fish. Other ocean animals eat plants. An ocean is their habitat. sea lion Quick Check Fill in the chart. Write the names of what lives in an ocean habitat. 6. ocean habitat -Review Summaries and quizzes online at www.macmillanmh.com 59 Chapter 4 • Lesson 2 P rinter P DF 060_066_C04_L03_288152.indd Page 60 9/6/08 1:49:26 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Plants and Animals Live Together Why do plants and animals live together? mouse Plants help animals. Animals need plants for food. Animals use plants for homes. They need plants to help them hide. ↑ Animals can use plants for food. Animals can use plants to make a home. ↓ skunks 60 Places to Live P rinter P DF 060_066_C04_L03_288152.indd Page 61 9/6/08 1:49:49 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Animals help plants too. Bees help plants make new plants. They carry pollen from flower to flower. The pollen helps make seeds. bee Pollen sticks to a bee’s legs. → Quick Check Circle all correct answers. 7. Animals use plants for homes food . friends hiding 8. Animals can help plants make friends new plants . seeds 61 Chapter 4 • Lesson 3 P rinter P DF 060_066_C04_L03_288152.indd Page 62 9/12/08 5:37:33 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is a food chain? A food chain shows the order of how living things get food. The Sun starts every food chain. Plants need the Sun to grow. Plants are next in most food chains. Animals eat plants or other animals. Some animals eat both! Food Chain Sun gives plant energy. Insect eats plant. Frog eats insect. 62 Places to Live P rinter P DF 060_066_C04_L03_288152.indd Page 63 9/12/08 4:37:41 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check 9. What is at the start of every food chain? Read a Diagram What does the owl eat? Owl eats frog. 63 Watch a food chain at www.macmillanmh.com Chapter 4 • Lesson 3 P rinter P DF 060_066_C04_L03_288152.indd Page 64 9/6/08 1:50:01 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What happens to living things when a habitat changes? Some things can harm a habitat. Then the habitat may change. Living things may not get what they need. ↑ Fire can harm a forest habitat. ↑ This forest habitat has changed. 64 Places to Live P rinter P DF 060_066_C04_L03_288152.indd Page 65 9/6/08 1:50:12 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some animals may move to a new habitat. Some plants or animals die. woolly mammoth The woolly mammoth is not alive today. Its habitat changed long ago. → Quick Check 10. Draw a picture of how a habitat can change. -Review Summaries and quizzes online at www.macmillanmh.com 65 Chapter 4 • Lesson 3 P rinter P DF 060_066_C04_L03_288152.indd Page 66 9/6/08 1:50:14 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Write a word from the box that matches each picture. forest grassland lake ocean 1. salty water that can be very deep 2. a dry place with a lot of grass 3. a place with many trees 4. water with land around it Tell what you know. 66 Chapter 4 • Lessons 1–3 • Vocabulary Review P rinter P DF 067_073_C05_L01_288152.indd Page 67 9/4/08 4:10:17 PM elhi-4 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 5 Looking at Earth What does Earth look like? Vocabulary river fresh water that flows into lakes and oceans mountain land that is very high valley low land between mountains plain flat land that is very wide soil the top layer of Earth 67 Chapter 5 P rinter P DF 067_073_C05_L01_288152.indd Page 68 9/4/08 4:10:26 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 What Earth Looks Like What is on the surface of Earth? Earth is made up of land and water. Water covers most of Earth. Earth Read a Photo What is the green part in this photo of Earth? 68 Looking at Earth P rinter P DF 067_073_C05_L01_288152.indd Page 69 9/12/08 4:39:09 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Land is the solid part of Earth. Water is all around the land. water land Quick Check Fill in the blank. 1. Most of Earth is covered by . 69 Chapter 5 • Lesson 1 P rinter P DF 067_073_C05_L01_288152.indd Page 70 9/4/08 4:10:51 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is Earth’s water like? Most of Earth’s water is found in oceans. Ocean water is salty. Fresh water is not salty. ocean ↑ An ocean is very large. lake ↑ A lake is smaller than an ocean. 70 Looking at Earth P rinter P DF 067_073_C05_L01_288152.indd Page 71 9/4/08 4:11:17 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Streams, rivers, and lakes can have fresh water. Streams flow into rivers. Rivers flow into lakes and oceans. river A river can move fast. → Quick Check Circle all correct answers. 2. Earth’s water is found in lakes rocks rivers . oceans 71 Chapter 5 • Lesson 1 P rinter P DF 067_073_C05_L01_288152.indd Page 72 9/4/08 4:11:29 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is Earth’s land like? The land on Earth is not all the same. A mountain is very high land. Low land between mountains is a valley. mountain valley 72 Looking at Earth P rinter P DF 067_073_C05_L01_288152.indd Page 73 9/12/08 4:39:24 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some land on Earth is flat. A plain is flat land. A plain is very wide. plain Quick Check 3. Draw a picture with two kinds of land. -Review Summaries and quizzes online at www.macmillanmh.com 73 Chapter 5 • Lesson 1 P rinter P DF 074_077_C05_L02_288152.indd Page 74 9/4/08 4:13:26 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Rocks and Soil What are rocks? Rocks are different shapes, sizes, and colors. Rocks can be smooth or rough. Rocks can be shiny or dull. All rocks are nonliving. Rocks basalt granite sandstone marble 74 Looking at Earth P rinter P DF 074_077_C05_L02_288152.indd Page 75 9/4/08 4:13:33 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check Look at the rocks on these pages. 4. Which rock is smooth? 5. Which rock is rough? chalk pumice limestone Read a Photo How are these rocks different? obsidian 75 Chapter 5 • Lesson 2 P rinter P DF 074_077_C05_L02_288152.indd Page 76 9/4/08 4:13:42 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is soil? Soil is the top layer of Earth. It has small bits of rocks. It has bits of dead plants and animals. Air and water are in soil too. ← Topsoil holds some water. ← Clay soil holds a lot of water. ← Sandy soil holds a little water. 76 Looking at Earth P rinter P DF 074_077_C05_L02_288152.indd Page 77 9/4/08 4:13:57 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Many soils are brown. Some are red, gray, or yellow. ↑ This dead tree will be part of the soil. Quick Check Name two things that are in soil. 6. 7. -Review Summaries and quizzes online at www.macmillanmh.com 77 Chapter 5 • Lesson 2 P rinter P DF 078_082_C05_L03_288152.indd Page 78 9/4/08 4:14:51 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Changing the Land How can rocks change? Water can change the shape of rocks. Water gets into the cracks of a rock. The water can turn into ice. This makes the cracks bigger and the rock break. Changing Rock Read a Photo What is changing this rock? 78 Looking at Earth Watch water change rock at www.macmillanmh.com P rinter P DF 078_082_C05_L03_288152.indd Page 79 9/4/08 4:15:03 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Plants can change rocks too. Roots grow into a crack. The roots get bigger and break the rock. Quick Check Name two things that can change rocks. 8. 9. ↓ The roots are cracking the rock. 79 Chapter 5 • Lesson 3 P rinter P DF 078_082_C05_L03_288152.indd Page 80 9/4/08 4:15:16 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How can land change? Wind can move rocks and soil. Water can move rocks and soil too. Wind and water can change the land. Water washes away rocks and soil. This makes a canyon. ↓ canyon 80 Looking at Earth P rinter P DF 078_082_C05_L03_288152.indd Page 81 9/4/08 4:15:42 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Plants can stop soil and rocks from moving. Roots help keep the soil in place. These plants keep sand from moving. ↓ sand dunes Quick Check Write one way soil and rocks are moved. 10. -Review Summaries and quizzes online at www.macmillanmh.com 81 Chapter 5 • Lesson 3 P rinter P DF 078_082_C05_L03_288152.indd Page 82 9/12/08 4:45:35 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Draw a line from each word to its meaning. 1. valley fresh water that flows into lakes and oceans 2. river flat land that is very wide 3. mountain low land between mountains 4. plain very high land Tell what you know. 82 Chapter 5 • Lessons 1–3 • Vocabulary Review P rinter P DF 083_087_C06_L01_288152.indd Page 83 9/3/08 3:18:16 PM u-s073 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 6 Caring for Earth Why do we need to care for Earth? Vocabulary natural resources things from Earth that people use pollution things that hurt the air, land, or water reuse to use something again reduce to use less of something recycle to make a new thing from an old thing 83 Chapter 6 P rinter P DF 083_087_C06_L01_288152.indd Page 84 9/3/08 3:18:28 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Earth’s Resources What is a natural resource? People use things that come from Earth. These things are called natural resources. ↑ People use wood from trees. People use rocks to build things. → ↑ People use wool from animals. 84 Caring for Earth P rinter P DF 083_087_C06_L01_288152.indd Page 85 9/13/08 6:01:13 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Animals, plants, rocks, and soil are natural resources. Air and water are natural resources too. People use dyes from plants. → Quick Check What are two natural resources? 1. 2. 85 Chapter 6 • Lesson 1 P rinter P DF 083_087_C06_L01_288152.indd Page 86 9/12/08 4:57:30 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Why is soil important? Soil is a natural resource. Plants grow in soil. People and animals use plants for food. Earth’s Resources Read a Photo What natural resources do you see? 86 Caring for Earth Watch how we use resources at www.macmillanmh.com P rinter P DF 083_087_C06_L01_288152.indd Page 87 9/3/08 3:19:22 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... We use soil to make things. Clay is a kind of soil. People use clay to make cups and other things. clay cup Quick Check Circle the answer. 3. Soil is a natural resource river 4. Clay is a kind of water . . soil -Review Summaries and quizzes online at www.macmillanmh.com 87 Chapter 6 • Lesson 1 P rinter P DF 088_091_C06_L02_288152.indd Page 88 9/3/08 3:20:22 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Using Earth’s Resources Why are water and air important? All living things need air and water. Plants need water to grow. Animals and people drink water. We use water to wash, cook, and play. Using Water 88 Caring for Earth P rinter P DF 088_091_C06_L02_288152.indd Page 89 9/3/08 3:20:51 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Dirty air and water hurt living things. People need to keep air and water clean. Quick Check 5. Draw a picture to show how people use water. Label your picture. Read a Photo How do people use water? 89 Chapter 6 • Lesson 2 P rinter P DF 088_091_C06_L02_288152.indd Page 90 9/3/08 3:20:56 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is pollution? Pollution hurts the land, water, and air. Trash or dirt in the ground, water, or air can cause pollution. Pollution can make living things sick. ↓ Pollution can hurt animals. 90 Caring for Earth P rinter P DF 088_091_C06_L02_288152.indd Page 91 9/3/08 3:21:01 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... We can stop pollution. We can do things to keep Earth clean. air pollution Quick Check Name two things that are hurt by pollution. 6. 7. -Review Summaries and quizzes online at www.macmillanmh.com 91 Chapter 6 • Lesson 2 P rinter P DF 092_096_C06_L03_288152.indd Page 92 9/12/08 5:05:47 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Saving Earth’s Resources How can we reuse resources? Natural resources can be used up. To save resources we can reuse things. Reuse means to use things again. Cans and bottles can be used again. ↓ 92 Caring for Earth P rinter P DF 092_096_C06_L03_288152.indd Page 93 9/3/08 3:21:46 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Reuse It Read a Photo What was reused to make this castle? Quick Check 8. Why is it important to reuse things? 93 Chapter 6 • Lesson 3 P rinter P DF 092_096_C06_L03_288152.indd Page 94 9/3/08 3:21:54 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How can we save resources? People can save natural resources. We can reduce how much we use. You can reduce what you use by using less of it. ↑ You can turn off a light. This saves electricity. ↑ Turn off the water when you brush your teeth. This saves water. 94 Caring for Earth P rinter P DF 092_096_C06_L03_288152.indd Page 95 9/3/08 3:22:09 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... People can recycle some things. To recycle means to make new things from old things. We do not use resources to make new things when we recycle. Many towns recycle paper, plastic, and glass. → Quick Check Circle the answer. 9. When we use less of something, we redo reduce . reuse 10. When we make new things from old things, we . reduce redo recycle -Review Summaries and quizzes online at www.macmillanmh.com 95 Chapter 6 • Lesson 3 P rinter P DF 092_096_C06_L03_288152.indd Page 96 9/3/08 3:22:20 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Use the words to answer the questions. natural resources pollution reuse 1. What is it called when you use something again? 2. What can hurt the air, water, or land? 3. What are things from Earth that we use? Tell what you know. 96 Chapter 6 • Lessons 1–3 • Vocabulary Review P rinter P DF 097_101_C07_L01_288152.indd Page 97 9/5/08 4:43:22 PM u-s088 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 7 Weather and Seasons What do you know about weather? Vocabulary temperature how cold or warm the air is water vapor water that goes up into the air spring the season after winter summer the season after spring fall the season after summer winter the season after fall 97 Chapter 7 P rinter P DF 097_101_C07_L01_288152.indd Page 98 9/5/08 4:43:33 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Weather All Around Us What is weather? Weather is what the sky and air are like each day. The sky can be sunny or cloudy. The air can be rainy, snowy, or dry. Temperature is how warm or cold the air is. Moving air is called wind. sunny cloudy 98 Weather and Seasons P rinter P DF 097_101_C07_L01_288152.indd Page 99 9/5/08 4:43:41 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check 1. Write words that tell about the weather. Kinds of Weather rainy snowy 99 Chapter 7 • Lesson 1 P rinter P DF 097_101_C07_L01_288152.indd Page 100 9/5/08 4:43:52 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How can you measure weather? You can use tools to measure weather. Weather Tools ← A thermometer tells how hot or cold the air is. A rain gauge tells how much rain falls. → ← A wind vane shows which way the wind blows. Read a Photo Which tool tells how hot or cold it is? 100 Weather and Seasons P rinter P DF 097_101_C07_L01_288152.indd Page 101 9/5/08 4:44:19 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... rain gauge Quick Check Write the name of the tool next to what it measures. 2. wind 3. rain -Review Summaries and quizzes online at www.macmillanmh.com 101 Chapter 7 • Lesson 1 P rinter P DF 102_105_C07_L02_288152.indd Page 102 9/5/08 4:45:11 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 The Water Cycle What makes it rain or snow? The Sun warms Earth’s water. Some water turns into water vapor. Water vapor is water that goes up into the air. The Water Cycle Sun clouds rain water vapor Read a Diagram What warms Earth’s water? 102 Weather and Seasons Watch the water cycle at www.macmillanmh.com P rinter P DF 102_105_C07_L02_288152.indd Page 103 9/5/08 4:45:14 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Water vapor cools in the sky. It turns into drops of water or ice. Clouds are made of both. The drops can get bigger and colder. Then they can fall back to Earth as rain or snow. Sleet is frozen rain. → ← Rain is drops of water. Quick Check Circle all correct answers. 4. What are clouds made of? water the Sun ice 103 Chapter 7 • Lesson 2 P rinter P DF 102_105_C07_L02_288152.indd Page 104 9/5/08 4:45:23 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are some different kinds of clouds? Clouds do not look the same. Some clouds are big and fluffy. Some clouds are very thin. ↑ These clouds are made of water drops. ↑ These clouds are made of bits of ice. 104 Weather and Seasons P rinter P DF 102_105_C07_L02_288152.indd Page 105 9/5/08 4:45:31 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... ↑ These thunder clouds bring rain and storms. Quick Check Draw two kinds of clouds. 5. -Review Summaries and quizzes online at www.macmillanmh.com 105 Chapter 7 • Lesson 2 P rinter P DF 106_109_C07_L03_288152.indd Page 106 9/5/08 4:46:08 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Spring and Summer What happens in spring? A season is a time of year. There are four seasons. The weather can change each season. Sunlight in Spring Date Sunrise Sunset Hours of Sunlight March 21 6:10 A.M. 6:21 P.M. 12 hours, 11 minutes Read a Chart What time does the Sun set on March 21? 106 Weather and Seasons P rinter P DF 106_109_C07_L03_288152.indd Page 107 9/5/08 4:46:31 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... In spring the Sun shines a long time. It can rain a lot in spring. Spring weather is often the same each year. Quick Check 6. What happens in spring? ↓ In spring plants grow and many animals are born. 107 Chapter 7 • Lesson 3 P rinter P DF 106_109_C07_L03_288152.indd Page 108 9/5/08 4:46:37 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What happens in summer? Summer is the season after spring. The weather can be warm and dry. Lots of sunlight helps plants grow. Sunlight in Summer Date Sunrise Sunset Hours of Sunlight June 21 5:43 A.M. 8:37 P.M. 14 hours, 54 minutes 108 Weather and Seasons P rinter P DF 106_109_C07_L03_288152.indd Page 109 9/5/08 4:46:48 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Many plants grow fruit. Animals grow bigger and stronger. ↑ In summer there are many plants to eat. Quick Check Circle the answer. 7. Summer is the season after fall winter spring 8. The weather in summer can be cold and wet . . warm and dry -Review Summaries and quizzes online at www.macmillanmh.com 109 Chapter 7 • Lesson 3 P rinter P DF 110_114_C07_L04_288152.indd Page 110 9/5/08 4:58:39 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 4 Fall and Winter What happens in fall? Fall is the season after summer. There are less hours of sunlight. The air gets cooler. Some leaves change color and drop. Sunlight in Fall Date Sunrise Sunset Hours of Sunlight September 21 6:55 A.M. 7:07 P.M. 12 hours, 12 minutes 110 Weather and Seasons P rinter P DF 110_114_C07_L04_288152.indd Page 111 9/5/08 4:58:43 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... In fall animals get ready for winter. Some grow thick fur. Some move to warmer places. chipmunk ↑ Some animals store food. geese ↑ Some birds fly south. Quick Check Name two things that animals do in the fall. 9. 10. 111 Chapter 7 • Lesson 4 P rinter P DF 110_114_C07_L04_288152.indd Page 112 9/5/08 4:58:47 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What happens in winter? Winter is the season after fall. Winter is the coldest season. There are fewer hours of sunlight. Seasons winter spring fall summer Read a Diagram When does the tree have no leaves? 112 Weather and Seasons P rinter P DF 110_114_C07_L04_288152.indd Page 113 9/5/08 4:59:02 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some plants die in winter. There is not a lot of food for animals. Some animals sleep until spring. dormouse ↑ Some animals sleep all winter. Sunlight in Winter Date Sunrise Sunset Hours of Sunlight December 21 7:23 A.M. 4:49 P.M. 9 hours, 26 minutes Quick Check Circle the answer. 11. The coldest season is summer winter . fall 12. Some animals eat all winter. sleep run -Review Summaries and quizzes online at www.macmillanmh.com 113 Chapter 7 • Lesson 4 P rinter P DF 110_114_C07_L04_288152.indd Page 114 9/5/08 4:59:21 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Use each word once to complete the sentences. fall season 1. The temperature winter is how warm or cold the air is. 2. The coldest season is . 3. Some leaves change colors in . 4. A is a time of year. Tell what you know. 114 Chapter 7 • Lessons 1–4 • Vocabulary Review P rinter P DF 115_119_C08_L01_288152.indd Page 115 9/6/08 2:28:05 PM u-s087 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 8 The Sky What can you see in the sky? Vocabulary star an object in the sky that makes its own light Sun the star closest to Earth Moon a ball of rock that moves around Earth planet a large object that moves around the Sun 115 Chapter 8 P rinter P DF 115_119_C08_L01_288152.indd Page 116 9/6/08 2:28:09 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 The Sky Above What is in the sky? At night you can see lights in the sky. Stars are the little spots of light. They are very far away. They make their own light. 116 The Sky P rinter P DF 116_121_C08_L03_288153.indd Page 116 9/6/08 4:36:41 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288153_G2/Application_Files_288153/... Lesson 3 The Moon and Stars Why can we see the Moon from Earth? The Moon is made of rock. It does not shine like the Sun. We see the Moon because the Sun’s light shines on it. We see the Moon best at night. During the day the Sun is too bright. Read a Diagram What shines light on the Moon? How the Moon Moves _____________________________ Sun Moon The Sun’s light shines on the Moon. 116 Earth and Space P rinter P DF 115_119_C08_L01_288152.indd Page 117 9/12/08 5:01:52 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... The Sun is a star. It is the star closest to Earth. The Sun lights Earth during the day. Quick Check 1. Why do stars look so small? There are many stars! → 117 Chapter 8 • Lesson 1 P rinter P DF 116_121_C08_L03_288153.indd Page 117 9/6/08 4:36:49 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288153_G2/Application_Files_288153/... The Moon moves in an orbit around Earth. It takes about one month for the Moon to make one orbit. The Moon repeats this path again and again. Quick Check 8. Why do we see the Moon in the sky? 9. Why do we see the Moon best at night? Earth 117 Chapter 8 • Lesson 3 P rinter P DF 115_119_C08_L01_288152.indd Page 118 9/6/08 2:28:41 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Why is the Sun important? The Sun makes heat and light. It warms the air, land, and water. Sun’s Warmth Read a Photo Who looks warmer? 118 The Sky P rinter P DF 116_121_C08_L03_288153.indd Page 118 9/6/08 4:36:51 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288153_G2/Application_Files_288153/... Why does the Moon seem to change shape? Over time the Moon seems to change shape. One night it looks round. A few nights later it is thin. The Moon’s shape does not change. The amount of light shining on the Moon changes. Each moon shape we see is called a phase. The phases of the Moon repeat in the same order each month. Moon Phases new moon 1 We can not see the Sun’s light shining on the Moon. 118 first quarter moon After a week the Moon is one quarter of the way through its orbit. Earth and Space P rinter P DF 115_119_C08_L01_288152.indd Page 119 9/12/08 5:02:42 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Earth would be dark without the Sun. It would be too cold for us to live. The Sun helps living things stay alive. → Quick Check Circle all correct answers. 2. The Sun makes heat water and . light -Review Summaries and quizzes online at www.macmillanmh.com 119 Chapter 8 • Lesson 1 P rinter P DF 116_121_C08_L03_288153.indd Page 119 9/6/08 4:36:57 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288153_G2/Application_Files_288153/... Quick Check 10. Draw what the Moon looks like about one week after a new moon. full moon ! The next week the Moon has moved. We can see all of the Moon’s lit side. last quarter moon " The Moon is three quarters of the way through its orbit by the third week. 119 Chapter 8 • Lesson 3 P rinter P DF 120_123_C08_L02_288152.indd Page 120 9/6/08 2:30:07 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Earth Moves What causes day and night? The Sun looks like it moves in the sky. It does not move. Earth moves and spins. When Earth spins, it makes day and night. ↑ The Sun looks high in the sky. Shadows are short. ↑ The Sun looks low in the sky. Shadows are long. 120 The Sky P rinter P DF 116_121_C08_L03_288153.indd Page 120 9/6/08 4:36:59 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288153_G2/Application_Files_288153/... What are stars? A star is an object in space made of hot gases. The gases give off heat and light. Some stars are bright. Stars can be different colors. Together some stars make patterns in the sky. These lines show a pattern of stars called Orion the Hunter. ↓ 120 Earth and Space P rinter P DF 120_123_C08_L02_288152.indd Page 121 6/16/09 6:05:38 PM u-s009 /Volumes/111/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_Fil... The sky is light on the part of Earth facing the Sun. It is day. Then Earth turns away from the Sun. The sky is now dark and it is night. You are here. Sun You are here. Sun Quick Check Complete the sentence. 3. When Earth spins it makes . 121 Chapter 8 • Lesson 2 P DF P ass 116_121_C08_L03_288153.indd Page 121 9/6/08 4:37:06 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288153_G2/Application_Files_288153/... From Earth, stars look like tiny points of light. They are very, very far away. There is one star close to Earth. It is the Sun. It looks large because it is close to Earth. The Sun lights up the sky during the day. We can not see other stars until night. → Quick Check Circle the answer. 11. The Sun is a star that is close to Earth. Moon Orion 12. Stars look tiny because they are shining far away . near -Review Summaries and quizzes online at www.macmillanmh.com 121 Chapter 8 • Lesson 3 P rinter P DF 120_123_C08_L02_288152.indd Page 122 9/6/08 2:30:27 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What causes a year? Earth spins each day. It also moves around the Sun. Earth takes one year to move all the way around the Sun. One Full Year Read a Diagram What does Earth move around? 122 The Sky Watch Earth move at www.macmillanmh.com P rinter P DF 120_123_C08_L02_288152.indd Page 123 9/6/08 2:30:32 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Part of Earth leans toward the Sun. The other part leans away. This makes the four seasons. winter spring summer fall Quick Check 4. How long does it take Earth to move around the Sun? -Review Summaries and quizzes online at www.macmillanmh.com 123 Chapter 8 • Lesson 2 P rinter P DF 124_128_C08_L03_288152.indd Page 124 9/6/08 2:31:19 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Earth’s Neighbors How does the Moon look? We see the Moon in the night sky. The Moon is a ball of rock. It moves around Earth. It does not make its own light. The Sun’s light shines on it. the Moon 124 The Sky P rinter P DF 124_128_C08_L03_288152.indd Page 125 6/16/09 1:39:13 PM u-s012 /Volumes/111-1/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_F... The lit part of the Moon changes. Moon Phases last quarter full new Read a Diagram first quarter When does the Moon look small? Quick Check 5. What makes the Moon’s light? 125 Chapter 8 • Lesson 3 P DF P ass 124_128_C08_L03_288152.indd Page 126 6/16/09 1:40:03 PM u-s012 /Volumes/111-1/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_F... What are planets? A planet is a large object in the sky. Planets move around the Sun. Earth is a planet. All planets are not the same. ↓ Eight planets move around the Sun. Sun 126 The Sky P DF P ass 124_128_C08_L03_288152.indd Page 127 6/16/09 1:40:08 PM u-s012 /Volumes/111-1/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_F... The planets close to the Sun are warm. The planets far from the Sun are cold. Quick Check Write each answer. 6. Which planet is closest to the Sun? 7. Is Venus colder or warmer than Earth? -Review Summaries and quizzes online at www.macmillanmh.com 127 Chapter 8 • Lesson 3 P DF P ass 124_128_C08_L03_288152.indd Page 128 9/6/08 2:32:12 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Find the word in the box that matches the clue. Write the word in the puzzle. Moon planet Sun Across stars 1. 2. a large object that moves around the Sun 3. 2. 4. the star closest to Earth Down 1. a ball of rock that moves around Earth 4. 3. they make their own light Tell what you know. 128 Chapter 8 • Lessons 1–3 • Vocabulary Review P rinter P DF 129_133_C09_L01_288152.indd Page 129 9/6/08 2:32:32 PM u-s087 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 9 Matter Everywhere What are things made of? Vocabulary matter what all things are made of mass how much matter is in something balance a tool used to measure mass solid a kind of matter that has a shape of its own liquid a kind of matter that flows and takes the shape of its container gas a kind of matter that does not have its own shape 129 Chapter 9 P rinter P DF 129_133_C09_L01_288152.indd Page 130 9/6/08 2:32:37 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Describing Matter What is matter? All things are made of matter. We can describe how matter looks. We can talk about color, shape, and size. We can tell how matter smells, tastes, sounds, and feels. ↑ This toy bear is brown and soft. ↑ The kite has points and four colors. 130 Matter Everywhere P rinter P DF 129_133_C09_L01_288152.indd Page 131 9/6/08 2:32:56 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... There are three kinds of matter. Matter can be a liquid, a solid, or a gas. Quick Check What are two colors on the kite? 1. 2. ↓ The water, the raft, the girl, and the air are matter. 131 Chapter 9 • Lesson 1 P rinter P DF 129_133_C09_L01_288152.indd Page 132 9/6/08 2:33:03 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What is mass? Mass is how much matter something has. Heavy things have more mass. Light things have less mass. A balance is a tool that measures mass. ↓ The metal bird has more mass. The sponge bird has less mass. balance 132 Matter Everywhere P rinter P DF 129_133_C09_L01_288152.indd Page 133 9/6/08 2:33:10 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Comparing Mass Read a Photo Which toy truck has more mass? How could you find out? Quick Check Circle the answer. 3. Heavy things have balance more 4. Lighter things have balance more mass. less mass. less -Review Summaries and quizzes online at www.macmillanmh.com 133 Chapter 9 • Lesson 1 P rinter P DF 134_137_C09_L02_288152.indd Page 134 9/6/08 2:34:20 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Solids What is a solid? A solid is a kind of matter. A solid has a shape of its own. Building Blocks Read a Photo What are solids in this photo? 134 Matter Everywhere P rinter P DF 134_137_C09_L02_288152.indd Page 135 9/6/08 2:34:35 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... The amount of matter in a solid stays the same. Look at the puzzle pieces and the finished puzzle. They have the same amount of matter. ↓ Quick Check List two things that are solids. 5. 6. 135 Chapter 9 • Lesson 2 P rinter P DF 134_137_C09_L02_288152.indd Page 136 9/6/08 2:34:50 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are some properties of solids? Solids can be big or small. Solids can be different shapes and colors. Some solids can bend or fold. ↓ You can fold some solids. 136 Matter Everywhere P rinter P DF 134_137_C09_L02_288152.indd Page 137 9/6/08 2:34:55 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Solids can feel hard or soft. Solids can feel rough or smooth. ↑ Scissors are hard and smooth. ↑ Feathers are soft. Quick Check 7. Draw a solid. 8. Describe the solid you drew. -Review Summaries and quizzes online at www.macmillanmh.com 137 Chapter 9 • Lesson 2 P rinter P DF 138_142_C09_L03_288152.indd Page 138 9/6/08 2:36:05 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Liquids and Gases What are some properties of liquids? A liquid is a kind of matter. A liquid does not have its own shape. It takes the shape of what it is in. honey ketchup milk oil ← Some liquids flow slowly. ← Some liquids flow quickly. 138 Matter Everywhere P rinter P DF 138_142_C09_L03_288152.indd Page 139 9/6/08 2:36:17 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... A liquid’s shape can change. You can put a liquid in a big cup. Then put the liquid in a small cup. The amount of liquid stays the same. Quick Check 9. How are liquids and solids the same? Write a fact that is true about both. solid has its own shape both liquid does not have its own shape 139 Chapter 9 • Lesson 3 P rinter P DF 138_142_C09_L03_288152.indd Page 140 9/6/08 2:36:20 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are some properties of gases? A gas is a kind of matter. A gas does not have its own shape. A gas spreads out to fill the space it is in. Gas Changes Shape Read a Diagram Did the gas stay in the balloon? 140 Matter Everywhere Watch gas changing shape at www.macmillanmh.com P rinter P DF 138_142_C09_L03_288152.indd Page 141 9/12/08 5:00:22 PM u-s073 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... The air is made of many gases. You can not see these gases. You can feel air when it moves. It can feel hot or cold. Air helps the ribbon stay up. → Quick Check Circle the correct answer. 10. A gas does 11. Gases will have its own shape. does not fill up the space they are in. will not -Review Summaries and quizzes online at www.macmillanmh.com 141 Chapter 9 • Lesson 3 P rinter P DF 138_142_C09_L03_288152.indd Page 142 9/6/08 2:36:25 PM u-s087 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Circle the correct answer. 1. Things are made of mass matter . balance tells how much matter is in it. 2. Something’s mass matter balance 3. A gas has its own shape. solid liquid 4. The air is made of many gases solids 5. Some gases . liquids flow quickly. solids liquids Tell what you know. 142 Chapter 9 • Lessons 1–3 • Vocabulary Review P rinter P DF 143_145_C10_L01_288152.indd Page 143 9/9/08 3:55:21 PM u-s088 CHAPTER /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... 10 Changes in Matter How can matter change? Vocabulary mixture different things put together dissolve to mix well into a liquid freeze to change from a liquid to a solid melt to change from a solid to a liquid 143 Chapter 10 P rinter P DF 143_145_C10_L01_288152.indd Page 144 9/9/08 3:55:26 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 1 Matter Can Change How can matter change? You can bend, fold, or tear some solids. The solid does not look the same. It is still made of the same thing. Shaping Clay Read a Photo What kind of matter is clay? 144 Changes in Matter P rinter P DF 143_145_C10_L01_288152.indd Page 145 9/17/08 2:37:29 AM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Sometimes matter changes. It can change into something new. Heat and air can change matter. ↑ This paper has been cut. It is still paper. ↑ Heat changed the paper. Now it is ash. Quick Check Circle all correct answers. 1. Paper does not change when it is cut burned . folded -Review Summaries and quizzes online at www.macmillanmh.com 145 Chapter 10 • Lesson 1 P rinter P DF 146_149_C10_L02_288152.indd Page 146 9/9/08 3:56:08 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Making Mixtures What is a mixture? A mixture is different things put together. We can mix some solids. They may not change. We can see the solids in the mixture. We can take the mixture apart. balls marbles ↑ You can take apart this mixture. 146 Changes in Matter P rinter P DF 146_149_C10_L02_288152.indd Page 147 9/15/08 2:50:04 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... You can mix solids with water. Some solids float in water. Some solids sink in water. Quick Check 2. What is a mixture of something you like to eat? Sink and Float Read a Photo What do the red balls do in water? 147 Chapter 10 • Lesson 2 P rinter P DF 146_149_C10_L02_288152.indd Page 148 9/9/08 3:56:49 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are some other mixtures? Some mixtures are hard to take apart. The parts may dissolve or mix totally. Solids may dissolve in a liquid. Some liquids dissolve in a liquid too. The different parts are hard to see. ↓ This liquid dissolves in water. ↓ This solid dissolves in water. drink mix water food coloring water 148 Changes in Matter P rinter P DF 146_149_C10_L02_288152.indd Page 149 9/9/08 3:57:19 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Some liquids do not mix. They stay apart. oil water These two liquids do not mix. → Quick Check Circle the answer. 3. Drink mix can grow in water. dissolve break 4. Water and food coloring do not mix. oil drink mix -Review Summaries and quizzes online at www.macmillanmh.com 149 Chapter 10 • Lesson 2 P rinter P DF 150_154_C10_L03_288152.indd Page 150 9/9/08 3:58:15 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 3 Heat Can Change Matter How can solids and liquids change? A liquid can change. It can change into a solid or freeze. A liquid can freeze if it gets very cold. Water will freeze into ice. Forms of Water water ice 150 Changes in Matter P rinter P DF 150_154_C10_L03_288152.indd Page 151 9/9/08 3:58:24 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... A solid can change. It can change into a liquid or melt. A solid will melt when it is heated. Ice will melt when it gets warm. Quick Check Fill in the blanks. 5. When a liquid , it becomes a solid. 6. When a solid , it becomes a liquid. water Read a Photo What did the liquid change into? 151 Watch water change states at www.macmillanmh.com Chapter 10 • Lesson 3 P rinter P DF 150_154_C10_L03_288152.indd Page 152 9/9/08 3:58:27 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... How can liquids and gases change? Heat changes water. Heat makes water change into a gas. This gas is water vapor. Water vapor goes up into the air. ↑ This pond was full of water. ↑ Some water changed into gas. The pond has less water. 152 Changes in Matter P rinter P DF 150_154_C10_L03_288152.indd Page 153 9/9/08 4:01:33 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Water vapor cools. The gas changes into a liquid. It changes back into water. Water vapor cools into drops on this pitcher. → Quick Check Fill in the blanks. 7. Heat can change a liquid into a . 8. Water vapor cools and becomes . -Review Summaries and quizzes online at www.macmillanmh.com 153 Chapter 10 • Lesson 3 P rinter P DF 150_154_C10_L03_288152.indd Page 154 9/9/08 4:01:44 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Vocabulary Review Use the clues below to help you find the words in the puzzle. 1. different things put together 2. to mix well into a liquid 3. to change from a liquid to a solid 4. to change from a solid to a liquid a d e a v f z m i x t u r e l s t n k e g o s o q w e s t o c n n z u s l w s p e g i v h b b c j m e l t o t n Tell what you know. 154 Chapter 10 • Lessons 1–3 • Vocabulary Review P rinter P DF 155_159_C11_L01_288152.indd Page 155 9/11/08 CHAPTER 7:03:12 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 11 On the Move How can you make things move? Vocabulary motion a change in an object’s position push a force that moves something away from you pull a force that moves something closer to you simple machine a tool that can make it easier to move things magnet a thing that can pull objects with iron in them 155 Chapter 11 P rinter P DF 155_159_C11_L01_288152.indd Page 156 9/11/08 7:03:17 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 1 Position and Motion How can you tell where something is? A position is the place where something is found. It can tell you if an object is over or under. Find Things at a Fair 156 On the Move P rinter P DF 155_159_C11_L01_288152.indd Page 157 6/16/09 5:58:45 PM u-s009 /Volumes/111/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_Fil... Position can tell you if an object is close or far. It can tell you if an object is to the right or left. Quick Check 1. Circle all words that tell about an object’s position. over thing under left near Read a Photo Describe the position of something at the fair. 157 Chapter 11 • Lesson 1 P DF P ass 155_159_C11_L01_288152.indd Page 158 9/11/08 7:03:23 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 How do things move? Things that move are in motion. Motion is a change in an object’s position. All things do not move the same. Some things move forward or backward. ↑ This car moves in a curvy line. ↑ This plane moves in a straight line. 158 On the Move P rinter P DF 155_159_C11_L01_288152.indd Page 159 9/11/08 7:03:26 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Some things move side to side. Objects can move fast or slow. This rocket ship moves very fast. → Quick Check Fill in the blanks. 2. Things that move are in 3. Things can move -Review Summaries and quizzes online at www.macmillanmh.com . or slow. 159 Chapter 11 • Lesson 1 P rinter P DF 160_163_C11_L02_288152.indd Page 160 9/15/08 2:59:49 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Lesson 2 Pushes and Pulls What makes things move? A force is a push or a pull that moves something. A push moves something away from you. A pull moves something toward you. ← The girl pushes the ball to the basket. ↑ The boy pulls the bag. 160 On the Move P rinter P DF 160_163_C11_L02_288152.indd Page 161 9/11/08 6:55:22 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Gravity is the force that pulls things toward Earth. Jumping Rope When you jump up, gravity pulls you back down. If you let go of something, it falls down. Read a Photo What will pull the girl back down? Quick Check Circle the answer. 4. A push moves something toward you . away from you 5. A pull moves something toward you . away from you 161 Watch how gravity works at www.macmillanmh.com Chapter 11 • Lesson 2 P rinter P DF 160_163_C11_L02_288152.indd Page 162 9/11/08 6:55:33 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 How are forces different? A small push can move a small object. A big push can move a big object. A big push can move an object faster. It can also move it farther. ↑ A big force pushes the ball far away. ↑ A small force pushes the ball a short way. 162 On the Move P rinter P DF 160_163_C11_L02_288152.indd Page 163 9/11/08 6:55:44 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Friction is two things rubbing together. This force slows things down. rubber stopper ← Friction makes you stop. Quick Check Fill in the blanks. 6. A object faster. force can move an 7. A force moves an object a short way. -Review Summaries and quizzes online at www.macmillanmh.com 163 Chapter 11 • Lesson 2 P rinter P DF 164_167_C11_L03_288152.indd Page 164 9/11/08 7:04:33 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 3 Simple Machines What are simple machines? A simple machine is a tool. They make it easier to move things. Simple machines help people do work. Using Simple Machines Read a Photo What simple machines are these children using? 164 On the Move P rinter P DF 164_167_C11_L03_288152.indd Page 165 9/11/08 7:04:41 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 One kind of simple machine is a pulley. It has a rope that moves over a wheel. It helps lift heavy things. pulley ↑ This pulley is a simple machine. Quick Check Name two ways simple machines help us. 8. They help us . 9. They help us . 165 Chapter 11 • Lesson 3 P rinter P DF 164_167_C11_L03_288152.indd Page 166 9/15/08 3:08:27 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... What are levers and ramps? A lever is a simple machine. It has a bar that moves on a point. It moves like a seesaw. A lever makes it easier to move something. ↑ This lever can move or lift something. ↓ An oar is a lever. It helps to move the boat. lever 166 On the Move P rinter P DF 164_167_C11_L03_288152.indd Page 167 9/11/08 7:04:58 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 A ramp is also a simple machine. One side is lower than the other. It helps us move things up and down. ramp ↑ A ramp can take the place of steps. Quick Check 10. Draw a picture of a simple machine. -Review Summaries and quizzes online at www.macmillanmh.com 167 Chapter 11 • Lesson 3 P rinter P DF 168_172_C11_L04_288152.indd Page 168 9/11/08 7:07:32 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 4 Magnets Magnet Chart What is a magnet? A magnet pulls things. A magnet will pull things that have iron in them. Iron is a kind of metal. Read a Chart magnet What is one object the magnet attracted? ← Magnets pull things with iron in them. 168 On the Move P rinter P DF 168_172_C11_L04_288152.indd Page 169 6/16/09 1:42:13 PM u-s012 /Volumes/111-1/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_F... Magnets do not pull some metals. Magnets do not pull cloth, feathers, or crayons. Quick Check Look at the picture below. Fill in the blanks. 11. Magnets pull things with in them. 12. Magnets do not pull . Magnets do not pull paper, glass, rubber, or wood. ↓ 169 Chapter 11 • Lesson 4 P DF P ass 168_172_C11_L04_288152.indd Page 170 9/11/08 7:07:51 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 What are a magnet’s poles? Magnets have two ends where the pull is strongest. One end is called north. The other end is called south. ↑ The ends of a magnet are called poles. Ends that are not the same pull toward each other. → 170 On the Move P rinter P DF 168_172_C11_L04_288152.indd Page 171 9/11/08 7:07:58 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 A north pole and a south pole pull toward each other. Two north poles or two south poles will push away from each other. These magnets are round. North poles are red. South poles are blue. → Quick Check Circle all correct answers. 13. Which ends pull toward each other? N and N N and S S and S 14. Which ends push away from each other? N and N N and S S and S -Review Summaries and quizzes online at www.macmillanmh.com 171 Chapter 11 • Lesson 4 P rinter P DF 168_172_C11_L04_288152.indd Page 172 6/16/09 1:42:20 PM u-s012 /Volumes/111-1/GO00181_r1/Reading_Essentials%0/9780022881528_G1/Application_F... Vocabulary Review Use the words below to answer the questions. force magnet pull 1. What force moves something closer to you? 2. What object pulls things with iron in them? 3. What do we call a push or pull that moves something? Tell what you know. 172 Chapter 11 • Lessons 1–4 • Vocabulary Review P DF P ass 173-177_C12_L01_288152.indd Page 173 9/11/08 CHAPTER 7:21:16 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 12 Energy Everywhere What is energy? Vocabulary energy a force that makes things work or change heat a form of energy that makes things warm vibrate to move back and forth light a form of energy that lets you see electricity a form of energy that gives some things power to work 173 Chapter 12 P rinter P DF 173-177_C12_L01_288152.indd Page 174 9/11/08 7:21:30 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 1 Energy and Heat What is energy? Energy makes things work. Energy makes things change. We use energy every day. ↑ Windmills use wind to get energy. ↑ Lights use energy from electricity. 174 Energy Everywhere P rinter P DF 173-177_C12_L01_288152.indd Page 175 9/11/08 7:21:38 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 There are different kinds of energy. Heat, light, and sound are kinds of energy. Electricity is a kind of energy too. ↑ Cars use energy from gasoline. Quick Check List two kinds of energy. 1. 2. 175 Chapter 12 • Lesson 1 P rinter P DF 173-177_C12_L01_288152.indd Page 176 9/11/08 7:21:42 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 What is heat? Heat is energy that makes things warm. We can get heat from burning things. We can burn wood, oil, or gas for heat. ↑ The Sun’s energy warms Earth. Heat Energy Read a Photo Where is the heat coming from? 176 Energy Everywhere Watch what heat can do at www.macmillanmh.com P rinter P DF 173-177_C12_L01_288152.indd Page 177 9/11/08 7:21:59 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Heat energy makes houses warm. Heat energy cooks food. ↑ Rubbing your hands together makes heat. ↑ Heat energy makes popcorn pop. Quick Check Circle all correct answers. 3. Heat energy cools things. warms pulls 4. Heat energy comes from a push a fire . the Sun -Review Summaries and quizzes online at www.macmillanmh.com 177 Chapter 12 • Lesson 1 P rinter P DF 178-181_C12_L02_288152.indd Page 178 9/11/08 7:25:50 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 2 Sound How can you make sound? Sound is a kind of energy. It is made when something vibrates. Vibrate means to move back and forth. Sounds can tell us things. They can help us wake up. Sounds help us stay safe. ↓ The cymbals vibrate. This makes a sound. 178 Energy Everywhere P rinter P DF 178-181_C12_L02_288152.indd Page 179 9/11/08 7:25:58 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 City Sounds Read a Photo What sounds do you hear in the city? Quick Check 5. What are some sounds you hear every day? Draw a picture. Label the sounds you hear. 179 Chapter 12 • Lesson 2 P rinter P DF 178-181_C12_L02_288152.indd Page 180 9/11/08 7:26:01 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 How are sounds different? Sounds can be loud. Big vibrations make loud sounds. Sounds can be soft. Little vibrations make soft sounds. A coyote’s howl can be loud. → ↑ A broom makes a soft sound. 180 ↑ A fire engine makes a loud sound. Energy Everywhere P rinter P DF 178-181_C12_L02_288152.indd Page 181 9/11/08 7:26:06 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 A sound can be high or low. Fast vibrations make a high sound. Slow vibrations make a low sound. Quick Check Write the answer to the question. 6. What makes a loud sound? ↑ A whistle makes a high sound. ↑ A motorcycle makes a low sound. -Review Summaries and quizzes online at www.macmillanmh.com 181 Chapter 12 • Lesson 2 P rinter P DF 182-185_C12_L03_288152.indd Page 182 9/11/08 7:28:03 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 3 Light What is light? Light is a kind of energy. Light lets you see. Some things let light through them. Read a Diagram What lets the boy see? Some things do not. Light and Sight ↑ These glasses let a lot of light through. ↑ These glasses let some light through. ↑ This mask lets no light through. 182 Energy Everywhere P rinter P DF 182-185_C12_L03_288152.indd Page 183 9/11/08 7:28:45 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Some things block light. This makes a shadow. The girl’s body blocks light. She has a shadow. → Quick Check Write two things that can block light. 7. 8. 183 Chapter 12 • Lesson 3 P rinter P DF 182-185_C12_L03_288152.indd Page 184 9/11/08 7:28:48 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 What are some sources of light? Most of the light on Earth comes from the Sun. Other lights are made by people. Light lets us see things. Light bounces off objects and goes into your eyes. This lets you see the object. ↑ Lights in the street help us see at night. ↑ Lamps help us see at home. 184 Energy Everywhere P rinter P DF 182-185_C12_L03_288152.indd Page 185 9/11/08 10:41:15 PM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... flashlight string of lights ↑ There are different kinds of lights. Quick Check Write the answers to the questions. 9. What makes most of Earth’s light? 10. What kinds of things make light? -Review Summaries and quizzes online at www.macmillanmh.com 185 Chapter 12 • Lesson 3 P rinter P DF 186-188_C12_L04_288152.indd Page 186 9/11/08 7:30:43 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Lesson 4 Electricity How do you use electricity? Electricity is a kind of energy. It gives some things power to work. Wires carry electricity. Batteries store electricity. We use electricity every day. Plugged In 186 Energy Everywhere P rinter P DF 186-188_C12_L04_288152.indd Page 187 9/17/08 2:45:33 AM u-s088 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Quick Check 11. List two objects that get electricity from wires. List two objects that get electricity from batteries. Electricity from Wires Electricity from Batteries Read a Diagram Name an object you see that needs electricity. -Review Summaries and quizzes online at www.macmillanmh.com 187 Chapter 12 • Lesson 4 P rinter P DF 186-188_C12_L04_288152.indd Page 188 9/11/08 7:30:59 PM elhi-4 /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152 Vocabulary Review Use the words below to answer each question. heat light vibrate 1. What kind of energy lets you see? 2. What kind of energy makes things warm? 3. What does an object do when it makes a sound? Tell what you know. 188 Chapter 12 • Lessons 1–4 • Vocabulary Review P rinter P DF 189-200_BM_GLO_288152.indd Page 189 10/14/08 1:58:36 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... amphibian An animal that lives on land and in water. (page 33) A frog is an amphibian. Arctic A cold and icy place near the North Pole. (page 26) Plants in the Arctic are short. balance A tool used to measure mass. (page 132) The side of a balance with more mass will go down. bird An animal that has two legs, two wings, and feathers. (page 31) A duck is a bird. desert A dry place. (page 24) Cactus plants can live in the desert. dissolve To mix well into a liquid. (page 148) Drink mix will dissolve in water. -Glossary at www.macmillanmh.com 189 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 190 10/14/08 1:58:41 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... electricity A form of energy that gives some things power to work. (page 186) Some things in your home need electricity. energy A force that makes things work or change. (page 174) Gasoline gives cars the energy to move. fall The season after summer. (page 110) Some leaves change colors in fall. fish An animal that has gills and fins. (page 34) Fish live under water. flower A plant part that makes seeds. (page 16) Flowers come in many shapes and colors. food chain The order of how living things get food. (page 62) All animals are part of a food chain. 190 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 191 10/14/08 1:59:05 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... force A push or a pull that makes a thing move. (page 160) It takes force to move a ball. forest A place with many trees. (page 54) Many plants and animals live in the forest. freeze To change from a liquid to a solid. (page 150) Water will freeze if it gets very cold. friction A force that slows things down. (page 163) Friction makes a skate stop. gas A kind of matter that does not have its own shape. (page 140) Gas gives balloons their shape. grassland A dry place with a lot of grass. (page 53) Prairie dogs live in a grassland. -Glossary at www.macmillanmh.com 191 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 192 10/14/08 1:59:11 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... gravity A force that pulls things toward Earth. (page 161) Gravity keeps us from staying up in the air. habitat A place where animals and plants live. (page 52) A forest is a habitat for many plants and animals. heat A form of energy that makes things warm. (page 176) Heat makes popcorn pop. insect An animal with six legs. (page 35) An ant is an insect. lake Water with land around it. (page 56) A lake is a home for many plants and animals. leaves Plant parts that make food. (page 8) Leaves come in different shapes and sizes. 192 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 193 10/14/08 1:59:49 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... light A form of energy that lets you see. (page 182) Light can help you see in the dark. liquid A kind of matter that flows and takes the shape of its container. (page 138) Milk is a liquid. living A thing that needs food, air, and water to live. (page 2) This girl is a living thing. magnet A thing that can pull objects with iron in them. (page 168) A magnet can pull some metals. mammal An animal with hair or fur. (page 30) Fur can keep mammals warm. mass How much matter is in something. (page 132) These birds both have mass. -Glossary at www.macmillanmh.com 193 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 194 10/14/08 2:00:06 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... matter What all things are made of. (page 130) A kite is made of matter. melt To change from a solid to a liquid. (page 151) Ice cubes can melt and become water. mixture Different things put together. (page 146) A fruit salad is a mixture. Moon A ball of rock that moves around Earth. (page 124) The Moon does not make its own light. motion A change in a thing’s position. (page 158) The plane is in motion. mountain Land that is very high. (page 72) A mountain is the highest kind of land. 194 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 195 10/14/08 2:00:13 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... natural resources Things from Earth that people use. (page 84) Rocks are a natural resource. nonliving A thing that does not need food, water, and air to live. (page 2) A rock is a nonliving thing. ocean Salty water that can be very big and deep. (page 58) Whales live in the ocean. plain Flat land that is very wide. (page 73) A plain is wide and flat. planet A large object that moves around the Sun. (page 126) Saturn is a planet. poles Where a magnet’s pull is strongest. (page 170) A magnet has a north pole and a south pole. -Glossary at www.macmillanmh.com 195 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 196 10/14/08 2:00:27 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... pollution Things that hurt the air, land, or water. (page 90) Pollution can harm animals. position The place where something is found. (page 156) You can find something if you know its position. pull A force that moves something closer to you. (page 160) The boy pulls the bag of balls. push A force that moves something away from you. (page 160) The girl pushes the ball when she throws it. rain forest A hot and wet place. (page 25) A rain forest has many green plants. recycle To make a new thing from an old thing. (page 95) You can recycle paper, plastic, and glass. 196 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 197 10/14/08 2:00:47 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... reduce To use less of something. (page 94) You can reduce how much water you use. reptile An animal with dry skin and scales. (page 32) A snake is a reptile. reuse To use something again. (page 92) You can reuse cans and bottles. river Fresh water that moves. (page 71) A river may flow into an ocean. root Plant part that holds a plant in the ground. (page 9) Roots hold a plant in the ground. season A time of year. (page 106) There are four seasons. -Glossary at www.macmillanmh.com 197 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 198 10/14/08 2:00:58 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... seed A plant part that grows into a new plant. (page 16) A seed inside a peach can grow. simple machine A tool that can make it easier to move things. (page 164) A rake is a simple machine. soil The top layer of Earth. (page 76) Soil can be brown, red, gray, or yellow. solid A kind of matter that has a shape of its own. (page 134) A block is a solid. spring The season after winter. (page 107) Many animals are born in spring. star An object in the sky that makes its own light. (page 116) We can see many stars in the night sky. 198 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 199 10/14/08 2:01:14 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... stem Part of a plant that holds it up. (page 8) The stem holds up the flower. summer The season after spring. (page 108) Lemonade can cool you off in the hot summer. Sun The star closest to Earth. (page 117) The Sun gives light and heat to Earth. temperature How cold or warm the air is. (page 98) The temperature can be cold in winter. valley Low land between mountains. (page 72) This valley is flat. vibrate To move back and forth. (page 178) Sound is made when something vibrates. -Glossary at www.macmillanmh.com 199 Glossary P rinter P DF 189-200_BM_GLO_288152.indd Page 200 10/14/08 2:01:19 AM admini /Volumes/112/GO00181/Reading_Essentials%0/9780022881528_G1/Application_Files_... water vapor Water that goes up into the air. (page 102) You can not see water vapor. winter The season after fall. (page 112) It can snow in winter. 200 Glossary P rinter P DF 201-202_BM_CR_288152.indd Page 201 9/19/08 12:11:15 AM admini Cover Photo Juniors Bildarchiv/Alamy; title page Juniors Bildarchiv/Alamy; back cover (t)Nigel Cattlin/Holt Studios International Ltd/Alamy, (b)Siede Preis/Getty Image (bkgd)PhotoLink/Getty Images; Bora/Alamy 1 (1)Comstock/PictureQuest, (2)C. Borland/PhotoLink/Getty Images, (3)Evan Sklar/Botanica/Jupiterimages, (4)Dave King/ DK Images (5) John Kaprielian/Photo Researchers, Inc.; (5)Evan Sklar/Botanica/Jupiterimages; 2-3 F. Sieb/Robertstock. com; 4 (l)CuboImages srl /Alamy, (r)Digital Vision/PunchStock; 5 ImageState/Alamy; 8 John Kaprielian/Photo Researchers,Inc.; 9 Macmillan/McGraw-Hill; 10 (t)Kathryn Kleinman/Botanica/ Jupiterimages, (r)C Squared Studios/Getty Images, (b)Len Delessio/Index Stock Imagery/Jupiterimages; 11 Royalty-Free/ CORBIS; 12 (t)Burke Triolo Productions/Getty Images, (b)C Squared Studios/Getty Images; 13 Macmillan McGraw-Hill; 15 (1)Royalty-Free/CORBIS, (2) Judd Piloss/Jupiterimages, (3)Mark Gibson/Index Stock Imagery, (4) Tom Bean/CORBIS (5)2006 Jim D. Barr/AlaskaStock.com; 16 Jose Fuste Raga/ zefa/CORBIS; 17 Judd Piloss/Jupiterimages; 19 Paul McCormick/Getty Images; 22 23 Natalie Ray/Macmillan/ McGraw-Hill; 24 Mark Gibson/Index Stock Imagery; 25 Tom Bean/CORBIS; 26-27 J. David Andrews/Masterfile; 28 Gilbert S. Grant/Photo Researchers; 29 (1)Blickwinkel/Alamy, (2) Jose B. Ruiz/naturepl.com (3)IT Stock/Punchstock, (4)Michael & Patricia Fogden/Minden Pictures, (5) Diane Nelson/The McGraw-Hill Companies, (6) Ted Clutter/Photo Researchers, Inc.; 30 (l)McDonald Wildlife Photography/Animals Animals, (r)Blickwinkel/Alamy; 31 Jose B. Ruiz/naturepl.com; 32 (t)IT Stock/Punchstock; (b)Joseph T. Collins/Photo Researchers; 33 Michael & Patricia Fogden/Minden Pictures; 34 (t)Imagestate/Alamy, (b)Photodisc/Getty Images; 35 (t)Burke/Triolo Productions/Brand X Pictures/Getty Images, (b)Ted Clutter/Photo Researchers, Inc; 36 (t)Joe McDonald/ CORBIS, (b)Art Wolfe/Getty Images; 37 Daniel J Cox/Getty Images; 38 (t)Pete Oxford/Minden Pictures, (b)Norbert Rosing/ Getty Images; 39 Konrad Wothe/Minden Pictures; 40-41 Darrell Gulin/CORBIS; 41 OnRequest Images/Alamy; 42 Alan & Sandy Carey/zefa/CORBIS; 43 mJames Watt/Visuals Unlimited; 44 (l)Gerard Brown/Getty Images, (r)Jane Buton/Getty Images; 45 (l)Jane Burton/Getty Images, (r)Darrell Gulin/Getty Images; 46 Paul Bricknell/DK Images; 47 (l)Paul Bricknell/DK Images, (r)Mike Dunning/DK Images; 51 (1)Nicole Duplaix/Getty Images, (2)Jeremy Woodhouse/Masterfile, (3)Jack Milchanowski/Visuals Unlimited, (4)David R. Frazier Photolibrary/Alamy, (5)David Fleetham/Getty Images; 52 (b)Nigel J. Dennis/Photo Researchers; 53 Jeremy Woodhouse/Masterfile; 54 (l)Jack Milchanowski/Visuals Unlimited; (r)Getty Images; 56 (c)David R. Frazier Photolibrary, Inc./Alamy, (cr)Arthur Morris/CORBIS, (bl)John Warden/ Getty Images; 57 Harry Engels/Photo Researchers; 58 (t)Georgette Douwma/Photo Researchers, (b)David Fleetham/Getty Images; 59 Wayne and Karen Brown/Index Stock Imagery; 60 (t)Gary Meszaros/Getty Images, (b)Konrad Wothe/Minden Pictures; 61 imagebroker/Alamy; 64 (l)Digital Vision/PunchStock, (r)Steve Maslowski/Photo Researchers; 66 (t to b)David Fleetham/Getty Images, David R. Frazier Photolibrary, Inc./ Alamy, Jack Milchanowski/Visuals Unlimited, Jeremy Woodhouse/Masterfile; 67 (1)Amy and Chuck Wiley/Wales/ Index Stock Imagery, (2)Amy and Chuck Wiley/Wales/Index Stock Imagery, (3)Gary Yeowell/Getty Images, (4)Macduff Everton/CORBIS, (5)Natalie Ray/Macmillan/McGraw-Hill; 68 NASA/Stock Image/age fotostock; 69 Greg Scott/ Masterfile. 70 (l)Larry Dale Gordon/zefa/CORBIS, (r)CORBIS/ Punchstock; 71 Amy and Chuck Wiley/Wales/Index Stock Imagery; 72 Gary Yeowell/Getty Images; 73 Macduff Everton/ CORBIS; 74 (tl)Joyce Photographics/Photo Researchers (tr br bl) Ken Cavanaugh/Macmillan/McGraw-Hill; 75 (tc)Tony Lilley/ /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Alamy, (tr)Jacques Cornell/Macmillan/McGraw-Hill, (tl b)Ken Cavanaugh/Macmillan/McGraw-Hill; 76 Natalie Ray/Macmillan/ McGraw-Hill; 77 R. Ian Lloyd/Masterfile; 78 Larry Stepanowicz/ Visuals Unlimited; 79 Mark Lewis/Getty Images; 80 (t)Daryl Benson/Masterfile, (b)William Manning/CORBIS; 81 William Manning/CORBIS; 83 (1)Rainer Hackenberg/zefa/CORBIS, (2)Deco/Alamy, (3)Natalie Ray/Macmillan/McGraw-Hill, (4)BigCheesePhoto/PunchStock, (5)Mark E. Gibson/CORBIS; 84 (t)The Stock Asylum, LLC/Alamy, (b)John James Wood/ Index Stock Imagery; 84-85 Rainer Hackenberg/zefa/CORBIS; 85 Rose Hartman/CORBIS; 86 George and Monserrate Schwartz/Alamy; 87 Mel Curtis/Getty Images, (inset)Ian Cummings/Rough Guides/DK Images; 88 (l)Johner/Getty Images, (r)Thinkstock Images/Jupiter Images/Comstock/ Punchstock; 89 (l)Peter Cade/Getty Images, (r)FoodCollection/ age fotostock; 90 Deco/Alamy; 91 Dean Conger/CORBIS; 92 93 Natalie Ray/Macmillan/McGraw-Hill; 94 (l)Natalie Ray/ Macmillan/McGraw-Hill, (r)BigCheesePhoto/PunchStock; 95 Mark E. Gibson/CORBIS; 97 (1)G. Schuster/zefa/CORBIS, (2)Richard Cummins/CORBIS, (3)Photodisc/Punchstock, (4)Ariel Skelley/Getty Images, (5)Brand X Pictures/PunchStock; 98 (l)G. Schuster/zefa/CORBIS, (r)Royalty Free/CORBIS; 99 (l)Robert Brenner/PhotoEdit, (r)Rob Casey/Getty Images; 100 (t)Jacques Cornell/Macmillan/McGraw-Hill, (c)L.S. Stepanowicz/Bruce Coleman USA, (b)Dynamic Graphics Group/Creatas/Alamy; 101 David Young-Wolff/PhotoEdit; 103 (l)Altrendo Images/Getty Images, (r)Charlie Riedel/AP Images; 104 (t)CORBIS/Punchstock, (b)Craig Aurness/CORBIS; 105 Michael S. Yamashita/CORBIS; 106 Rommel/ Masterfile; 107 Richard Cummins/CORBIS; 108 Photodisc/Punchstock: 109 Paul Gapper /Alamy; 110 Visions of America, LLC/Alamy; 111 (l)Jeff Lepore/Photo Researchers, (r)Chase Swift/CORBIS; 112 Stock Connection/Alamy; 113 Stephen Dalton/Minden Pictures; 115 (1)G. Schuster/zefa/CORBIS, (2)Eckhard Slawik/ Photo Researchers; 116-117 Gabe Palmer/CORBIS; 117 Jerry Lodriguss/Science Photo Library; 118 (l)Comstock/PunchStock, (r)PCL/Alamy; 119 Tony Craddock/Stone/Getty Images; 120 (l)IT Stock Free/Punchstock, (r)Henning von Holleben/ Getty Images; 123 Natalie Ray/Macmillan/McGraw-Hill; 124 Richard Wahlstrom/The Image Bank/Getty Images; 125 (r)Eckhard Slawik/Photo Researchers, (l)Macmillan/ McGraw-Hill; 129 (1)PIXTAL/PunchStock, (2) Stockdisc/ PunchStock, (4)Ken Karp/Macmillan/McGraw-Hill, (5)Sally Ullman/FoodPix/Jupiterimages, (6)Jules Frazier/Getty Images; 130 (l)Andy Crawford/DK Images, (r)DK Images; 131 Ariel Skelley/CORBIS; 132 Natalie Ray/Macmillan/McGraw-Hill; 133 Natalie Ray/Macmillan/McGraw-Hill; 134 Ken Karp/ Macmillan McGraw Hill; 135 (l)Natalie Ray/Macmillan/McGrawHill, (r)Ken Karp/Macmillan/McGraw-Hill; 136 Ken Cavanaugh/ Macmillan/McGraw-Hill; 137 Macmillan/McGraw-Hill; 138 (tl)Groesbeck/Uhl/Getty Images, (tr)Masterfile, (bl)Sally Ullman/FoodPix/Jupiterimages, (br)Martyn F. Chillmaid/ Science Photo Library; 139 Ken Cavanaugh/Macmillan/McGrawHill; 141 David Young-Wolff/Alamy; 143 (1)Dennis Gray/Cole Group/Getty Images, (2)Natalie Ray/Macmillan McGraw-Hill, (3 4)Ken Karp/Macmillan/McGraw-Hill; 144 Natalie Ray/ Macmillan/McGraw-Hill; 145 Ken Cavanaugh/Macmillan/ McGraw-Hill; 146 147 148 149 Natalie Ray/Macmillan/McGrawHill; 150-151 Ken Karp/Macmillan/McGraw-Hill; 152 Luis Forra/ epa/CORBIS; 153 Natalie Ray/Macmillan/McGraw-Hill; 155 (1)Thinkstock/Punchstock, (2)Chris Clinton/Getty Images, (3)Michael Scott/Macmillan/McGraw-Hill, (4)Photofusion Picture Library/Alamy, (5)Ken Cavanaugh/Macmillan/McGrawHill; 158 (l)Brand X Pictures/Punchstock, (r)Thinkstock/ Punchstock; 159 Digital Vision/Getty Images; 160 (l)Chris Clinton/Getty Images, (r) Michael Scott/Macmillan/McGrawHill; 161 Comstock Images/Punchstock; 162 (l)Punchstock, (r)ThinkStock LLC/Index Stock Imagery; 163 (l)Patrick Bennett/ CORBIS, (r)Rolf Schultes/dpa/CORBIS; 164 Michael Newman/ 201 Credits P rinter P DF 201-202_BM_CR_288152.indd Page 202 9/19/08 12:11:31 AM admini PhotoEdit; 165Glow Images/Punchstock; 166 (t)DK Images, (b)Steve Prezant/CORBIS; 167 (t)Photofusion Picture Library/ Alamy; 168 (t)Natalie Ray/Macmillan/McGraw-Hill, (b)Ken Cavanaugh/Macmillan/McGraw-Hill; 169 Natalie Ray/Macmillan/ McGraw-Hill; 170 (t)Jacques Cornell/Macmillan/McGraw-Hill, (b)Natalie Ray/Macmillan/McGraw-Hill; 171 Natalie Ray/ Macmillan/McGraw-Hill; 173 (1)Jack Star/PhotoLink/Getty Images, (2)Aqua Image/Alamy, (3)David Young-Wolff/ PhotoEdit, (4)Kader Meguedad/Alamy; 174 (l)John W Banagan/ Getty Images, (r)Golden Gate Images/Alamy; 175 Jack Star/ PhotoLink/Getty Images; 176 (t)Dynamic Graphics/ JupiterImages, (b)Aqua Image/Alamy; 177 Lena Johansson/ Getty Images; 178 David Young-Wolff/PhotoEdit; 179 Greg Stott/Masterfile; 180 (t)Photodisc/Punchstock, (bl)Creatas/ Punchstock, (br)Tom Carter/PhotoEdit; 181 (l)WireImageStock/ Masterfile, (r)Ted Soqui/CORBIS; 182 (t)Eyewire Collection/ Getty Images, (br bc bl)Natalie Ray/Macmillan/McGraw-Hill; 183 Peter Griffith/Masterfile; 184 (l)Rudy Sulgan/CORBIS, (r)Kader Meguedad/Alamy; 185 David Young-Wolff/PhotoEdit, 185 Macmillan/McGraw-Hill; 189 (1)Michael & Patricia Fogden/ Minden Pictures, (2)Jim D. Barr/AlaskaStock.com,(3 6)Natalie Ray/Macmillan/McGraw-Hill, (4)Jose B. Ruiz/naturepl. com,(5)Mark Gibson/Index Stock Imagery; 190 (1)Jack Star/ PhotoLink/Getty Images,2)Ariel Skelley/Getty Images,(3)Imagestate/Alamy,(4)Royalty-Free/Corbis; 191 (1)ThinkStock LLC/Index Stock Imagery,(2)Jack Milchanowski/Visuals Unlimited, (3)Ken Karp/Macmillan/ McGraw-Hill, (4)Rolf Schultes/dpa/Corbis,(5)Jules Frazier/ /Volumes/112/GO00181/Reading_Essentials%0/288152_G1/Application_Files_288152/... Getty Images, (6)Jeremy Woodhouse/Masterfile; 192 (1)Comstock Images/Punchstock, (2)Nicole Duplaix/Getty Images, (3)Lena Johansson/Getty Images, (4)Ted Clutter/Photo Researchers, Inc., (5)David R. Frazier Photolibrary, Inc./ Alamy,(6)Evan Sklar/Botanica/Jupiterimages; 193 (1)David Young-Wolff/PhotoEdit, (2)Sally Ullman/FoodPix/ Jupiterimages, (3)Comstock/PictureQuest, (4 6)Natalie Ray/ Macmillan/McGraw-Hill, (5)Blickwinkel/Alamy; 194 (1)DK Images, (2)Dennis Gray/Cole Group/Getty Images, (3)Richard Wahlstrom/The Image Bank/Getty Images,(4)Thinkstock/ Punchstock, (5)Amy and Chuck Wiley/Wales/Index Stock Imagery; 195 (1)Rainer Hackenberg/zefa/Corbis, (2)C. Borland/ PhotoLink/Getty Images, (4)Macduff Everton/Corbis, (5)Jacques Cornell/Macmillan/McGraw-Hill, David Fleetham/ Getty Images; 196 (1)Deco/Alamy, (2)Michael Scott/Macmillan/ McGraw-Hill, (3)Chris Clinton/Getty Images, (4)Tom Bean/ Corbis, (5)Mark E. Gibson/Corbis; 197 (1)BigCheesePhoto/ PunchStock, (2)IT Stock/Punchstock, (3)Natalie Ray/ Macmillan/McGraw-Hill, (4)Amy and Chuck Wiley/Wales/Index Stock Imagery, (5)John Kaprielian/Photo Researchers, Inc., (6)Stock Connection/Alamy; 198 (1)Judd Pilossof/ Jupiterimages, (2)Michael Newman/PhotoEdit, (3)Natalie Ray/ Macmillan/McGraw-Hill, (4)Ken Karp/Macmillan McGraw Hill, (5)Richard Cummins/Corbis, (6)Rob Matheson/Corbis; 199 (1)Dave King/DK Images, (2)Photodisc/Punchstock, (3)G. Schuster/zefa/Corbis,(5)Gary Yeowell/Getty Images, (6)David Young-Wolff/PhotoEdit; 200 Stock Connection/Alamy. 202 Credits P rinter P DF