Environment- Chapter 2: Cycles in Nature



Environment- Chapter 2: Cycles in Nature

Section 1: The Cycles of Matter

1. Define matter:

2. How are matter and the environment related?

3. Define water cycle:

4. Label and define the 6 steps of the water cycle using figure 1 and pgs 30-31.

5. Define carbon cycle:

6. Why is carbon important to living things?

7. Label and define the parts of the carbon cycle from pg 32.

8. Define nitrogen cycle:

9. What percent of the atmosphere is nitrogen?

10. What is nitrogen fixation?

11. How do most animals get nitrogen?

12. Label the nitrogen cycle diagram:

13. What do we call the movement of water from the atmosphere to the land and oceans?

15. What element do all biological molecules have?

16. Combustion of fossil fuels is part of what natural cycle? Why?

Section 2: Ecological Succession

17. What is succession?

18. What is the development of a community on barren rock called?

19. What is a typical pioneer organism?

20. When succession takes place in an area that has previously had growth we call it?

21. What do we call the first plants to grow on an abandoned farm?

22. A hardwood tree is most likely going to grow during what phase of succession?

23. During the second year, after a field is abandoned, how/why do the weeds appear?

24. Lichens growing on abandoned rock are examples of what?

25. What type of succession will happen after a forest fire?

26. What comes after lichens in primary succession?

Diagrams: Look at the 2 succession diagrams below. EXPLAIN what is happening in each and why they are primary or secondary succession.

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Name: ____________________________Date:_______ Period: ________

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