Ecosystems LESSON PLAN 3 Teacher: Susie Brown GRADE LEVEL: 5th Grade SUBJECT/TOPIC: Different Types of Ecosystems LONG RANGE/UNIT GOAL: State Standards: �0507.2.3 Create a simple model illustrating the interspecific relationships within an ecosystem. National Standards: Have an understanding of… All populations living together and the physical factors with which they interact compose an ecosystem. OBJECTIVES: Students will learn about the different types of ecosystems on our planet and then produce a personal biome depicting their chosen environment. CLASSROOM LAYOUT: Class discussion of ecosystem types will take place in the student’s desk but then activity to be carried out throughout the room. 1 SHORT DESCRIPTION OF LESSON: A short lecture dealing with the different types of ecosystems will be followed by class discussion. The students should know several types and be able to discuss the similarities and difference of each. Pictures will be shown to help create a visual of each type. The students will then create their own biome in a 2 liter soda jar. They will be able to pick the type of environment they want to create and modify the contents accordingly. Lesson will close with each describing what they made and why they chose the materials they chose. DEVELOPMENT OF SET: Show students example of three biomes created the week before and then begin discussion of different ecosystem types. TIME ALLOTTED FOR THE LESSON: Lecture/Class Discussion: 10 minutes Biome creation and clean up: 25 minutes Students show projects and discuss: 10 minutes Total: 45 minutes MATERIALS, TOOLS AND RESOURCES: 2 liter soda bottle, cut in half Fallon size zip lock Rocks, soil, seeds, water Pictures of different ecosystems WEB LINKS: http://www.harcourtschool.com/activity/exploring_ecosystems/ http://www.beverlyschools.org/schools/exploringecosystems/index.html PREREQUISITE TECHNOLOGY SKILLS: Additional activities include web quest and internet research. Basic internet navigation skills needed for both. 2 TECHNIQUES/ACTIVITIES: Engage: Show three different soda bottle biomes created the week before and describe why they are the same or different. Discuss ecosystem types such as rain forest, tundra, dessert, tidal zones, swamps, and forest. Involve students in discussion. Explore: http://pbskids.org/zoom/activities/sci/birdfeeder.html Biome in a Baggie Sent in by: Anastasia of TX It's a tiny environment! Materials Needed 2 liter soda bottle, cut in half gallon-size resealable storage bag pebbles potting soil seeds - grass, beans, or whatever you have available water 3 Instructions 1. Check with a grown-up before you begin this. 2. A biome is an ecological community, like a rainforest, desert, or prairie. 3. Here's a way that you can experiment with how plants grow in different environments. It's a biome in a baggie. Here's how to make one. 4. First, pour pebbles into the bottom half of the soda bottle. The pebbles should be about a half an inch deep. 5. Then, pour some potting soil over the pebbles. Your biome should have about twice as much soil as pebbles. 6. Now, to plant the seeds. Make a trench down the center of the soil that's as deep as your fingernails. 7. Then sprinkle a pinch of seeds in the trench. 8. Cover it up with the soil. 9. Water the soil just until you see the water collect at the bottom of the pebbles. 10. Put the biome in a plastic bag and seal it. 11. Now, you've created an environment for your plants. You won't need to water your seeds 4 again because the water will recycle itself. The roots of the plant absorb the water and the water travels up the stem to all the parts of the plant. When the water gets to the leaves, some of it evaporates. Some water also evaporates from the soil. The evaporated water forms drops on the bag. This is called condensation. The condensation then falls back down to the ground, like rain. This is called precipitation. This is the water cycleevaporation, condensation, and precipitation. 12. Put your biome in a sunny place and in about three to four days your plants should start growing. The cool thing about a biome in a baggie is that everything your plants need is there. It's got water, nutrients from the soil, air from the bag, and it makes food from the sun. Now, here's how you can experiment with your biome in a baggie. Make a few different biomes and change the amount of light and water they get. This 5 way you can see how your plants grow in different environments. A rainforest is a hot, wet climate but doesn't have a lot of light. A desert is hot and dry and doesn't have much water. A prairie has medium amounts of light and water. Eventually your plants are going to run out of carbon dioxide. Do some research and find out what you would need to keep your biome in a baggie going for a long time. Visit your local library or ask your parent or teacher for help. Then, send your discoveries to ZOOM. Explain: If students need more information about the types of ecosystems teacher can provide this or direct them to reference materials. Elaborate: While monitoring the construction of the biomes any further information can be given as well as dealing with any misconceptions that arise. If students finish early they can look through the available books or work on a web quest on ecosystems. http://www.harcourtschool.com/activity/exploring_ecosystems/ http://www.beverlyschools.org/schools/exploringecosystems/index.html Evaluate: Informal assessment through discussions. Grade for completion of biome activity and comment on what they produced and why. DIVERSE LEARNERS: Physical assistance can be given to those that need it or some students may work in pairs. Other modifications can be made as needed. 6 EXTENSIONS/ALTERNATIVE PLANS: Biomes to be created week before activity so any potential problems should be known at that time. STUDENT PRODUCTS: Biome ASSESSMENT: Informal assessment through discussions. Grade for completion of biome activity and comment on what they produced and why. CLOSURE: Students will show their biomes to the class and describe their material choices and what they hope will happen in their project. Teacher will wrap up any loose or confusing ideas. 7