Name:______________________________________________________________________________________________Date:________________________Class:_____________________ Science Benchmark Study Guide Characteristics of Science: 1. What is a graduated cylinder used to measure? It is used to measure the volume of a liquid 2. Which science tool is used to measure the mass of an object? A triple beam balance 5. List the steps of the Scientific Method. Ann Has Twenty Adorable Dogs and Cats Ask a question, Form a Hypothesis, Test your hypothesis (experiment), Analyze your results, Draw conclusion, Communicate Results 6. When should safety rules and precautions be planned? 3. Read the graduated cylinders below. When you design your experiment 7. Why is it important for scientists to record accurate data while experimenting? In order to past data to other scientists and retest 1. 7 mL 2. 38 mL 3. 33 mL 4 Read the triple beam balances below. 4. 20 mL 8. If you wanted to verify a claim, which step of the scientific method would help you do so? Make observations 9. I want to calculate how much liquid I have, which tool should I use? Graduated cylinder 10. When comparing how much water two plants absorb, what could I do to figure how much each plant absorbed? 1st triple beam balance is 286.7 grams 2nd triple beam balance is 376 grams Measure the amount of water you put in each plant Theories of the Solar System: Name that Theory: 10. What evidence supports the universe is expanding? Big Bang Theory 1. Expansion of the universe Galaxies are moving farther apart Heliocentric theory 2. Sun Centered Solar System Geocentric theory 3. Earth Centered 12. Rank the following objects in terms of size. Largest (1) to smallest (4) Big Bang Theory 4. Lemaitre and Hubble 2 Galaxy Geocentric Theory 5. Aristotle and Ptolemy 4 Earth Heliocentric theory 6. Copernicus and Galileo Heliocentric theory 7. Jupiter’s Moons 3 Sun 1 Universe 13. What type of galaxy do we live in? Milky Way Galaxy 8. Draw and explain Geocentric and Heliocentric Theories. 14. Where is our solar system located within the Milky Way? Of the outer arm called Orion’s Arm 15. A Light year measures? Distance 16. Name the three types of galaxies: 1. Elliptical 2. Irregular 3. Spiral Heliocentric – sun centered model of the universe Geocentric - earth-centered model of the universe 9. What is nebula? A cloud of dust and gas Comparing Planets: 1. What mnemonic device helps you remember the order of the planets? My Very Educated Mother Just Served Us Nachos Mars Red Planet 2. Describe Inner Planets. Neptune Methane Gas/Blue Small and rocky Uranus Rotates on its side 3. Describe Outer Planets. Venus Hottest Planet Large and gaseous Jupiter Great Red Spot 4. Which planets have greater gravity? Remember Mass! Saturn Most Visible Rings The outer planets because they are larger 9. Label the Planets. Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune 5. What makes Earth unique and have the ability to support life? Liquid water 6. Is Earth an Inner or Outer Planet? Circle One. Inner Outer 7. What causes the Moon to orbit the Earth? Explain. The moon is smaller and the earth is larger. 8. Name that Planet! Jupiter Largest Planet Venus Earth’s Twin Sister Motions: 1. What is the difference between the terms rotation and revolution? Rotation is spinning of its axis; revolution is orbiting around the sun 2. Name that motion Revolution Earth orbiting the Sun Rotation Earth spinning on its axis Rotation Makes stars seam to move in sky Revolution 365 ¼ days or One Earth Year Rotation 24 hours or One Day Rotation Causes the Sun to appear to rise/set 3. What does Earth’s tilt cause? Seasons 4. What percentage of Earth lit up at any given time? 50% Gravity: 1. What is the force that governs motion in the solar system? Gravity and inertia 2. What two factors affect the gravitational force between two objects? Mass and distance 3. Why do the planets revolve around the Sun? The gravitational pull is greater because the sun is larger 4. Why does the moon revolve or orbit Earth instead of the Sun? Because it is closer to Earth Space Rocks: 1. Label the Diagram. 1. What are comets? Space objects that are composed of ice, rock, dust, methane, and ammonia 2. Where do they form? Kuiper Belt and Oort cloud 3. Why does a comets tail always point away from the Sun? Because of solar wind from the sun Name that object! Asteroid- A large chunk of rock/metal orbiting between Mars and Jupiter Meteoroid- A piece of an asteroid that has broken off and is moving in space Meteor- A meteoroid that is burning up in the atmosphere; a shooting star Meteorite- A chuck of rock or metal that hits the surface of a planet; creating a huge crater on impact