Assessment criteria Unit 7

1. Given a group of organisms, make a trophic web and explain what it represents.
2. Know the trophic levels: producers, consumers (primary, secondary and tertiary) and decomposers.
3. Explain how matter flows in an ecosystem.
4. Explain how energy flows in an ecosystem.
5. Define biomass and production.
6. Know what a trophic pyramid is and its types.
7. Given a trophic pyramid, explain it.
8. Given some data about the organisms in an ecosystem, draw a trophic pyramid.
9. Given a sketch of the carbon cycle, explain it.
10. Given a sketch of the nitrogen cycle, explain it.

Bean burrito

"Did you know that every time you eat a bean burrito you are helping save the Earth? Go

Extra. Ecosystems

Go to this website and fill in the chart with the examples of extremophiles.

What is a extremophile?

Write down the meaning of the new words.

Nitrogen cycle

Ecosystems: Footprint

Calculate your footprint using the calculator on this website. Write down in you notebook the questions (you don't need to copy all the statement, just what you need to remember what the question was about) and your answers.

Choose 10 things from this website you could do to reduce your footprint.

Ecosystems. "The world without us"

Read the text and complete the timeline about the fall of New York.

If you want to see the video again ...