Carbon Transformations and Ecosystem Dynamics
Delve into the interconnected processes of matter and energy in ecosystems, exploring the role of carbon transformations, energy flows, and human-managed ecosystems like forests, beef farms, and corn farms. Compare and contrast these systems to understand their unique functions and environmental impacts.
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Presentation Transcript
Carbon: Transformations in Matter and Energy Environmental Literacy Project Michigan State University Ecosystems Unit Activity 5.2: Ecosystem Products and Services Jigsaw 1
Unit map You are here 2
Matter and Energy in Ecosystems Throughout Lesson 3, you ve traced carbon and energy through an ecosystem, discovering these important points: 1. Matter cycles through an ecosystem from the atmosphere -> organic molecules (photosynthesis) -> atmosphere (cellular respiration). Energy flows through an ecosystem from the sun-> chemical energy (via photosynthesis) -> heat energy radiated out to space (via cellular respiration) 2. 3
Matter and Energy in Ecosystems 3. Photosynthesis brings matter AND energy into an ecosystem, converting inorganic carbon to organic carbon, and sunlight energy to chemical energy. 4. Herbivores, carnivores, and decomposers ALL depend on producers to satisfy their matter (for biosynthesis) and energy (for movement and cellular processes) needs. 4
Exploring a Different Ecosystem You will now read about and describe how a different human managed ecosystem functions. Here are the ecosystems: A Forest A Beef Farm A Corn Farm 6
Comparing Ideas with a Group Compare your ideas with someone who has the same ecosystem. How are they alike? How are they different? Consider making revisions to your work based on your conversation with your partner or group. 7
Similarities and Differences What are differences between the different ecosystems you read about? What are similarities between the ecosystems you read about? How does the corn farm compare to the beef farm in terms of inputs and outputs. How does the wind blowing into and out of each ecosystem compare? 9
Revisit Your Initial Ideas and Questions Look back at your initial ideas and questions about ecosystems from Lesson 1.2. What were your initial ideas? How have your ideas changed? What questions did you have? Name _____________________________ Teacher ___________________ Date __________ 1.2 Expressing Ideas and Questions Tool for Ecosystems: How many foxes can live in a meadow? 1. This picture shows part of a meadow ecosystem that includes rabbits, foxes, and grass. a. Draw and label arrows to show your ideas about how the fox gets the matter and energy it needs to live and grow. b. Explain your arrows. How do the other things in the picture provide matter and energy for the fox? 2. The picture shows more grass than rabbits and more rabbits than foxes. Does it have to be that way? Explain your reasoning. 3. What questions do you have about how the organisms in meadows and other ecosystems get the matter and energy that they need to live and grow? (Use the back if you need more space.) ?Ecosystems Unit, Activity 1.2 Carbon: Transformations in Matter and Energy 2019 Michigan State University 10
Exit Ticket Conclusions How do humans change ecosystems to get the products and services we need? Predictions What happens to other ecosystem services when humans disturb an ecosystem to get more of one product or service? 11
Learning Tracking Tool Record the activity chunk name Ecosystems Products and Services, Explainers Discuss what you did during the activity chunk and record your ideas in the column, What Did We Do? Discuss with your classmates what you figured out will help you to answer the unit driving question. Record your ideas in the column What Did We Figure Out? Discuss questions you now have related to the unit driving question and record them in the column What Are We Asking Now? 12
