Operation Everglades Rescue: Investigating Florida’s Plants and Animals & Their Habitats Fourth Grade Florida Studies Science Mini-Unit Providing Extension Activities for: The Last Egret By Harvey E. Oyer III Correlated to: Florida’s Next Generation Sunshine State Standards Division of Mathematics and Science Miami-Dade County Public Schools Teacher’s Name: Date: Science Mini - Unit: The Last Egret Fourth Grade 1. Title: Operation Everglades Rescue: Investigating Florida’s Plants and Animals & Their Habitats 2. Lesson Objectives: Standards – Next Generation Sunshine State Standards for Science Fourth Grade NGSSS SC.4.L.16.2 Explain that although characteristics of plants and animals are inherited, some characteristics can be affected by the environment. SC.4.L.16.3 Recognize that animal behaviors may be shaped by heredity and learning. SC.4.L.17.2 Explain that animals, including humans, cannot make their own food and that when animals eat plants or other animals, the energy stored in the food source is passed on to them. SC.4.L.17.4 Recognize ways plants and animals, including humans, can impact the environment. 3. Investigations Investigation One: South Florida Water: Supply and Demand Investigation Two: Observing Florida’s Ecosystems: Habitat Sweet Habitat Investigation Three: Pass the Energy Please! Investigation Four: Endangered Species “Wanted – Alive” 4. Steps to Deliver the Lesson Introduction: After reading and discussing the book The Adventures of Charlie Pierce: The Last Egret by Harvey E. Oyer III, have students read, discuss and respond to the Introduction for the Science Mini-Unit: The Last Egret handout. Materials needed for Introduction: Student Sheet: Introduction to Mini-unit: The Last Egret Investigation One: South Florida Water: Supply and Demand Adapted from http://www.nps.gov/ever/forteachers/index.htm Materials needed for Investigation: One or more pieces of limestone Map of South Florida (Appendix 1.1) Student Sheet (Appendix 1.2) can be copied back to back with Appendix 1.1 Two large identical sponges (preferably 8-10” long and 2” thick) Container of water Paper Towels for clean up Two pans to hold water, pan 1 labeled “Historic Everglades” and pan 2 labeled “Everglades Today” (Appendix 1.3) Two ID cards labeled “Historic Everglades” and “Everglades Today” (Appendix A 1.3) Four ID cards labeled: “Farmer,” “Developer,” “Population of South Florida,” and “Everglades.” (Appendix 1.3) Two additional containers to hold water Masking Tape Lesson Objective: Students will investigate that freshwater in the Everglades of South Florida is not unlimited. Students will understand that the water South Floridians use in all aspects of their lives comes from the Everglades. Students will recognize ways humans impact the environment and identify the problems that humans are creating due to the misuse of water. Background Information for Teachers: The Everglades depends on water from rainfall and drainage from the Kissimmee River Basin and Lake Okeechobee. Before people settled in South Florida, the water that spilled over the lake’s southern edge flowed southward through the Everglades. In the late 1800’s, people began to build canals and levees to control this water flow for human needs. Now the Everglades compete with humans for water. In times of drought, it does not receive enough water through the flood gates. In times of extreme moisture, it receives the excess. Also, the water the Everglades receive has been altered (polluted) before it gets here. Suggested Procedure: 1. The day before the activity, explain to your students how the Everglades are supplied with water. Remind students that limestone is the porous, sedimentary rock you see in the Everglades and can be found in our own “backyards”. These rocks are made of calcium and contain fossils of sea life, evidence of ancient seas that once covered the area. The limestone aquifer under the Everglades acts as the principal water recharge area for all of South Florida. Take students out to the schoolyard to find a piece of limestone and/or ask them to find one at home. Display the piece of limestone for student observation, while explaining its water-bearing capabilities. You may use the informational text “Geology” from The South Florida National Parks Activity Guide for Teachers to enhance students’ understanding regarding the natural water flow of the Everglades and the role of limestone. Just click on the following link: Geology, Hydrology, Habitats, Fire, Hurricanes & Native Peoples or see the technology link below. 2. Use the map of South Florida (Appendix 1.1) to review the concept of the original water flow from the Kissimmee River basin, to Lake Okeechobee, through the Everglades, into the Gulf of Mexico, and on to the coral reefs or the Dry Tortugas. Compare this to the altered water flow due to humans. Students complete #1 and #2 of the student worksheet. 3. Appoint four volunteers to represent “the Everglades,” “farming interests,” “developers,” and “the human population of South Florida.” Identify each volunteer with a name tag using the already made ID labels (Appendix1.2) 4. Pour water into an extra container. Completely saturate one sponge with water and place it into the pan you have labeled “Historic Everglades.” This sponge represents the original, unaltered Everglades during the summer wet season. It has received an uninterrupted flow of water. Ask the students where the water originates. 5. Ask the “Everglades” volunteer to squeeze the sponge over the pan to show how much water the Everglades can hold. Put the sponge back in the water. 6. Immerse the second sponge in the extra container of water until it is saturated. 7. Ask the students how the water flow has been changed by people and for what purposes is the water diverted away from the Everglades. Tell students that they are going to take water from the Everglades, just as people do. 8. Let the farmer give one squeeze to the sponge from pan 2 (“Everglades Today”), allowing some of the water to squeeze out into another container. Pass the sponge to the developer to let him/her squeeze. What do they do with the water? (They divert it, or drain it into the ocean to make the land dry enough for planting and building.) Students complete #3 of the student worksheet. 9. Pass the sponge to the “population of South Florida” for a squeeze into the sink. Ask: What do people use the water for? Students complete #4 of the student worksheet. 10. Explain that some of the water that these groups use is only “borrowed.” However, when they return it to the hydrologic system, it is not always in the same condition that it was when they removed it. It may also be put back in a different place than where it originated. Ask the students if they can think of some specific examples of how the water is affected and/or diverted (nutrients or fertilizers added by farmers, from residential areas and flushed into the ocean to prevent flooding, run off from roads, and lawns treated with pesticides and fertilizers). Students complete #5 from the student worksheet. 11. Let the “Everglades” get the last squeeze from the sponge from pan 2 (“Everglades Today”). The remaining water squeezed from the sponge into the second empty pan represents the water left for the Everglades after humans have diverted much of the water for their own use. 12. Go back to the first pan labeled “Historic Everglades” and squeeze the sponge again in its own pan. Now squeeze the sponge in the pan labeled “Everglades Today.” Compare the two. What is left for the Everglades? Technology Integration: Natural History Background Information: Geology, Hydrology, Habitats, Fire, Hurricanes & Native Peoples Suggested Student Evaluations: Ask the students: What effect does reduced water use have on the Everglades’ plants and animals? Ask the students to list where the Everglades gets its water, name three other competitors for that water, list three ways to conserve water, and explain how water coming into the Everglades has been changed. Investigation Two: Observing Florida’s Ecosystems: Habitat Sweet Habitat (Three Days) Adapted from http://www.nps.gov/ever/forteachers/index.htm Materials needed for Investigation: Investigation Two lesson plan opened electronically on a computer with internet access so that web sites and hyperlinks can be accessed and shown on a digital projector to the class. Student notebook or journal South Florida/Everglades plant and animal picture cards Lesson Objectives: The student will research at least four Everglades/South Florida habitats and be able to identify two animals and one plant that live in each habitat. The student will recognize how each habitat provides the necessary resources (food, water, shelter, and personal space) so that its plants and animals can survive. The student will compare and contrast the differences between the habitat types and the different organisms that live in each. Background Information for Teachers: South Florida/Everglades ecosystem is a collection of habitat types. The random formation of the limestone foundation in the Everglades determines where a certain habitat is found. Therefore pockets and islands of different habitats are scattered throughout. The water level and water availability determine the vegetation of a particular habitat, and this in turn determines the wildlife found there. For more teacher background information on the specific habitats see the following site: http://en.wikipedia.org/wiki/Geography_and_ecology_of_the_Everglades Suggested Procedure: 1. Pass out the student sheet Habitat Sweet Habitat. Ask students to study the “habitat sweet habitat” house illustration and share what they see. Ask them to compare this house to their home and explain how they are alike. 2. Say every living thing needs a habitat. Then ask: what is a habitat and have students define it. (A habitat is a home for plants and animals.) Discuss what they and all living things need to stay alive. Then ask what resource a habitat needs to provide. (These four resources: food, water, shelter, and space are the traits of a successful and healthy habitat for the plants and animals.) 3. Show a video about the Everglades. Have students watch the video to identify different habitats in the Everglades and the plants and animals living in them. Students can take notes. See the technology Integration resource choices below. If you are a Title one school you have access to the Discovery video. If not, try the other choices. Discuss what the students saw in the video. Say the Everglades has many habitats. We’ll focus on these four: Sawgrass Marsh, Freshwater Slough, Pine Rocklands, and Hardwood Hammocks. 4. Each of the habitats listed below are hyperlinks that will take you to kid friendly reading passages that present information and photographs describing the each habitat. Just click on the hyperlinked habitat’s name. Have students take notes identifying the characteristics that make each habitat different from the others. Students should also include plants and animals that live in each habitat. Sawgrass Prairie/Marsh • Wet Habitat • Sawgrass, not grass, but a sedge • Named for tiny sharp saw-like teeth attached to the leaf blade. • Water is about two feet deep in wet season • During dry season small pools of water trap thousands of fish that provide food for birds • birds: ibis, anhinga, heron, wood stork, • periphyton, a blue-green algae provides a microhabitat for insects, and tiny fish Freshwater Slough • Slow moving river • Holds deepest water all year - two to four feet deep • Animal population increases during the Everglades Dry Season (November-May) • Plants: Water lilies, giant reed, pond apple tree • Wading birds: Anhinga, Wood stork, ibis • Fish: gambusia, Florida gar, bass • Reptiles: alligator, turtles • Invertebrates: Apple snails Pine Rocklands • Driest habitat • Above sea level elevations • Porous oolite limestone bedrock • Slash pine has thick bark, high branches & needle like leaves • Thick bark = microhabitat for beetles, scorpions • Fire is essential for the survival of the pine rocklands • Fire removes competing plants/trees that are shading the new pine seedlings • Fire tolerant plants: cabbage palms, saw palmettos • Animals: scorpions, mice, rabbits, raccoons, panthers, deer, foxes, • woodpeckers, owls, and songbirds Hardwood Hammock • Broad- leafed hardwood tree forest • highest elevated land • Dark, shady, moist habitat • Soft and spongy ground cover from fallen leaves home to many decomposers • Trees: Royal Palm, Gumbo Limbo, Live Oak, Strangler Fig, & Lysiloma or “ tree snail tree” • Animals: Zebra butterfly, tree snails, panthers, raccoons, mice, rabbits, lizards, snakes, song birds • Symbiotic relationships: - Commensalism: hardwood trees & air plants or epiphytes - Mutualism: lichens - algae & fungus relationship • Sensitive to pollution 5. Have students help make the South Florida/Everglades plant and animal cards. Students can color and cut up the Supplementary South Florida animal and plant pictures found in the technology link. In addition students draw their own and/or find pictures to print from online. 6. Identify four centers in the classroom that will represent the four habitats studied. You can use bulletin board/wall space, or containers (boxes or bags) to represent the habitats. Each center should be clearly marked and decorated with its habitats’ characteristics. (Students can help.) 7. Divide the class into two groups to play the game Habitat Sweet Habitat. Line up each group in a single file. The lines should be next to each other with the leader of each facing the habitat centers. (relay race style) Each group’s stack of cards can be marked to identify each group’s accuracy. 8. Between the students and centers, place a stack of (or scatter) the habitat cards. 9. The first student in each line will, upon signal, run to the cards, pick one up, and place it in its appropriate habitat (center). The student then runs back to his/her line and tags the next person who will run and select another card. This continues until all the cards have been placed. 10. Once the groups have finished review the contents of each habitat center. Students can use their notes. 11. Discuss why certain organisms cannot survive in a particular habitat (wrongly placed cards). Technology Integration: Everglades video from Discovery: http://app.discoveryeducation.com/player/?assetGuid=75fb5e6f-d12f-4a1590e9cae97954eec8&fromMyDe=0&isPrinterFriendly=0&provider=&isLessonF romHealth=0&productcode=US&isAssigned=false&includeHeader=YES Everglades Royal Field Trip video: http://ka.uvuvideo.org/_Untold-Stories-Everglades-NationalPark/video/632519/86294.html Everglades Conservation video: http://video.nationalgeographic.com/video/environment/going-greenenvironment/conservation-in-action/everglades Direct link to habitat descriptions: http://www.nps.gov/ever/forkids/habitats.htm South Florida/Everglades plant and animal picture cards pgs 197-213: http://www.nps.gov/ever/forteachers/upload/SFNP%20Supplementary%20Ma terials.pdf Suggested Student Evaluation: Discuss the following questions with the students: What makes habitats different (i.e. water levels and availability, elevation, types of plants, types of animals, etc.)? Do some animals depend on more than one habitat? Are all different habitats necessary? Why do certain plants and animals need a particular habitat? Suggested Extension: Take the class on a schoolyard habitat observation walk. Have students keep a list of plants and animals they encounter. Students can draw illustrations and/or take pictures. Students compare plants and animals found in the schoolyard to those found in the Everglades habitats studied. Investigation Three: Pass the Energy Please! Materials needed for Investigation: small paper plate – represent the sun yarn- connect the organisms tape scissors crayons/markers Florida animal and plant pictures (Appendix 4.1) Lesson Objective: Students will describe and/or explain how energy is transferred through a food chain by creating a model of a Florida Everglades food chain. Background Information for Teachers: A food chain is the path by which energy passes from one living thing to another. Producers make their own food. Consumers cannot make their own food. They eat other organisms to get energy. There are three types of consumers: herbivores, carnivores, and omnivores Suggested Procedure: 1. Place each of the common Florida food chain cards and a paper plate representing the sun (Appendices 3.1-3.6) on blue trays to create the Florida Animal & Plant Pictures Stations. These stations/ trays will rotate round the classroom, not the students. 2. Ask the students to cut and arrange the plants and animals in order of an Everglades Food Chain. In their journals, the students will diagram each of the different Florida Everglades food chains. 3. On the final rotation the students will, in addition to diagramming in the journal, use materials listed (small paper plate – represent the sun, yarn- connect the organisms, tape, scissors, crayons/markers, Florida animal and plant pictures) to create a food chain model. The food chain should begin with the sun and continue with the producers and consumers. They should be linked with the yarn. 4. Upon completing the food chain, each group will present to the class their food chain and explain each organism’s role. 5. As a follow up assignment the students can complete the What’s My Role worksheet (Appendix 3.7). Students will classify Florida animals and plants into the following categories: producers and consumers (herbivores, carnivores, and omnivores). Technology Integration: http://studyjams.scholastic.com/studyjams/jams/science/ecosystems/foodchains. htm http://www.biology4kids.com/files/plants_main.html http://www.sheppardsoftware.com/content/animals/kidscorner/gamesforkids.htm Suggested Student Evaluations: Journal Entries Final food Chain What’s My Role (See attachment.) Investigation Four: Endangered Species “Wanted – Alive” Adapted from http://www.nps.gov/ever/forteachers/index.htm Materials Needed for Investigation: Class set of Reference Sheet Computers with Internet access or Books or other sources of information Paper and pencil/pen Poster sized paper Crayons, pencils, markers Lesson Objectives: Students will become knowledgeable about the endangered animal and plant species in South Florida. Students will identify ways in which plants and /or animals (including humans) can impact the environment. Students will understand how interaction of organisms in ecosystem can impact the environment. Students will identify animals’ energy sources. Background Information for Teachers: In 1973, the Endangered Species Act was passed by the United States Congress to classify plants or animals species that should be considered “endangered” or “threatened”. Students should be able to answer the following questions: What does it mean when a plant or animal is classified as endangered? Plants or animals species are considered endangered if they are in danger of becoming extinct throughout all or most of its range. Extinction is considered a natural process. However, today’s extinction rates of plants and animals are accelerating at a rate that is faster than a natural process. Factors that are contributing to this include: loss of habitat, alteration of water flow, drainage of wetlands, introduction of non-native organisms, direct killing (over-harvesting and poisoning) What are the endangered species found in the Everglades? Animal species that are classified as endangered are: Insects: Schauss Swallowtail Mammals: Florida Panther, West Indian Manatee, Key Largo Wood Rate, Key Largo Cotton Mouse Birds: Snail (everglades) Kite, Arctic Peregrine Falcon, Cape Sable Sea Side Sparrow, Wood Stork Reptiles: Kemp’s Ridley Turtle, Green Turtle, Hawksbill Turtle, Leatherback Turtle, American Crocodile Why should these species be saved? There are many benefits of naturally functioning ecosystems: oxygen production, soil generation and maintenance, ground water recharge, water purification, and flood protection. Biological diversity benefits humans. Plants and animals provide humans with food, clothing, energy, medicines, and structural materials. As such, effort should be continued to preserve endangered species. Some species may play a critical role in an ecosystem, and we may not even know about it. We don’t want to find out when it’s too late. Extinction is indeed forever. Once a species becomes extinct, a hole is left in the ecosystem and that species’ role, or niche, is left unoccupied. The loss of a single species can affect many other plants and animals. Suggested Procedure: 1. Assign or have students choose one of the endangered species plant or animal to research and prepare a poster for the class. Make sure that each species will be covered. Each poster should include: A physical description and picture Type of habitat required Predator/Prey relationship (what do they eat/what eats them) What role does the species fill in its environment (niche) 2. Students will present their posters to the class. Suggested Evaluation: After students’ presentations, discuss the following questions: Why should these species be saved? What are the endangered species found in the Everglades? Why should these species be saved? What can students do to help save endangered species? 3. Posters can be graded using the attached rubric.(see student sheet) Technology Integration: http://www.flmnh.ufl.edu/fish/southflorida/everglades.html http://www.cotf.edu/ete/modules/everglades/FEeverglades1.html http://www.miamisci.org/ecolinks/everglades/animals.html http://www.everglades.org/habitats/ http://whc.unesco.org/en/list/76/ Introduction to Mini-Unit: The Last Egret Student’s Name: _________________________ Date________________ To understand the Everglades today, you must first understand what it was like in the past - before man’s harmful impact on it. As you learned from reading the adventures of young Charlie Pierce, all of South Florida was once a slow-moving river full of saw grass that flowed slowly toward the ocean and the gulf. It was a vast area with different habitats that included marshes, sloughs, hardwood hammocks, pinelands, and cypress that were inhabited by a wide variety of plants and animals. Charlie and his Seminole friend, Tiger traveled down along South Florida’s coastal mangroves to Shark River on their great plume bird expedition moving into what we today call the Everglades, but which they called a wild jungle. Here the water spread over the different elevations of limestone rock creating a variety of habitats filled with beautiful and fascinating wading birds, mammals, fishes, reptiles, amphibians, air plants and trees. Charlie and Tiger relied on many of these animals as a source of food just as many of the Seminole and Miccosukee people did who first lived in the Everglades. Through Charlie’s travels, friends he encountered, and animals he observed he learned firsthand that not only can plants and animals have an effect on the environments but humans can play an even greater role. 1. From the book, The Last Egret, what message did Charlie finally understand regarding his role in the environment? ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 2. What impact would Charlie and his friends have had if they continued their hunting of plumes? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 3. How did the Audubon Society play a role in conserving the environment? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 4. As you complete this unit of study, list ways you would protect your home, the South Florida Everglades. Also think of ways you take for granted the plants and animals in your environment. Think of ways you can spread the word for protection of the Everglades. Keep a page in your journal to keep track of your thoughts and actions. Investigation One: South Florida Water: Supply and Demand Appendix 1.1 Map of South Florida Source: http://www.nps.gov/ever/forteachers/index.htm Student’s Name: __________________________ Date: __________________________ Investigation One: South Florida Water: Supply and Demand Water is the most critical issue facing Everglades National Park and Big Cypress National Preserve. It enters the park directly in the form of rainfall, or indirectly by flowing down from the north. Historically, the rain that fell on the Kissimmee River Basin eventually made its way south into Lake Okeechobee and then the Everglades. Today, much of the water is diverted for other uses before it reaches the park; hence, little is available to evaporate back into the atmosphere. Everyone recognizes that water is essential for our survival, even for our very own existence. We use water in many ways. People aren’t the only ones who depend on clean water. Many different kinds of plants and animals that live in the Everglades/South Florida depend on water, too! Sharing the resource means working together to protect our lakes, rivers, canals, and wetlands! As we explore and observe: 1. Describe the original water flow to the Everglades? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 2. How do you think water flow has been changed by people? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 3. How do farmers and developers use the water? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 4. How does the “population of South Florida” use the water? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ 5. Think of some specific examples of how the water is affected and/or diverted? ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Investigation One: South Florida Water: Supply and Demand Appendix 1.2 ID cards Historic Everglades Everglades Today Historic Everglades Everglades Today Farmer Developer Population of South Florida Everglades Name _________________________ Date_____________________ Habitat Sweet Habitat Every living thing needs a home or a habitat! 1. What is a habitat? ___________________________________________________________________________ ___________________________________________________________________________ 2. What are the four things that a habitat needs to provide so that its plants and animals can survive? _______________________________________ _______________________________________ _______________________________________ _______________________________________ Notebook/Journal Activity: As we explore the four habitats of the Everglades make an entry in your notebook for each of the four habitats. Then describe each habitat, identifying what characteristics make it different from the other habitats. Include three or more animals and one or more plants. Everglades Habitat Match Up Matching Letter Habitat 1. Fresh Water Slough 2. Hardwood Hammock 3. Pine Rocklands 4. Sawgrass Marsh Main Characteristics A. Fire tolerant plants grow in the driest and rockiest habitat. B. Sedge with saw-like teeth blades grow in this wet habitat. C. A slow moving river that holds the deepest water. D. Broadleaved trees grow on highest elevated land. Investigation Three: Pass the Energy! Appendix 3.1 Investigation Three: Pass the Energy! Appendix 3.2 Investigation Three: Pass the Energy! Appendix 3.3 Investigation Three: Pass the Energy! Appendix 3.4 Investigation Three: Pass the Energy! Appendix 3.5 Investigation Three: Pass the Energy! Appendix 3.6 Investigation Three: Pass the Energy! Appendix 3.7 Source: http://www.nps.gov/ever/forteachers/index.htm Name: _________________________ apple snail raccoon swamp lily mosquito fish kite raccoon Date:___________ What’s My Role? deer anole alligator egret hawk panther blue heron marsh rabbit shrimp fungus grasshopper bream Producers Consumers Label the consumers: H for herbivores C for carnivores O for omnivores Investigation Three: Pass the Energy! Activity #2: grass snake shrimp earthworm algae eagle Decomposers Name: ____________________________ Date: ______________________ Endangered Species “Wanted-Alive” Choose one of the endangered plant or animal species to research and create a poster. Your poster must include: A physical description and picture Type of habitat required Predator/Prey relationship(what do they eat/what eats them) What role does the species fill in its environment (niche) Poster Rubric Illustration & Captions 1- illustration and captions are incomplete and vague 2- illustration and/or captions are partially complete and/or vague 3- illustration and captions are complete and clearly written 4- illustration and captions are complete and clearly well written with details 1- poor display two attributes are missing 2- average quality- only one attribute missing with minor errors and of fair quality 3- good quality- all attributes present with few if any minor errors 4- superior display – all attributes present and of exemplary quality 1-included few of the required sources with incomplete and vague description 2- included some of the required sources with incomplete and/or vague description 3- included most of the required sources with detailed description 4- included all of the required sources with well detailed complete descriptions 1-included contributing factor with incomplete and vague supporting evidence 2- included some contributing factors with incomplete and/or vague supporting evidence 3- included most contributing factors with some supporting evidence 4- included all contributing factors with detailed supporting evidence Display Attributes Grammar/Spelling Clear/Legible Appearance Type of Habitat Required Include sources for : Food Water Shelter Personal space Factors Contributing to Plant or Animal Being Endangered