Page 79 - Science Course 2 (Book 2)

Mo10-L1: Vocabulary Review

Direction: On the line before each clue, write the letter of the term that matches it correctly. Then answer
the questions that follow.

1. CO2, for example A. element

2. CO2 is part of this series of processes B. carbon cycle
3. C or P, for example C. fossil fuels
4. series of processes that does not include the atmosphere D. phosphorous cycle

5. increase levels of atmospheric CO2 when burned E. greenhouse gas

6. What is another example of an element?

7. Some level of greenhouse gases occur naturally and keep Earth warm enough to support life. What are
two human activities that add to the levels of greenhouse gases in the atmosphere?

Mo10-L1: Key Concept Organizer

Direction: On the line before each statement, write the letter of the Earth system that matches it correctly.
Some Earth systems may be used more than once.

1. The ozone layer helps protect organisms from harmful solar radiation. A. atmosphere and
biosphere
2. Organisms contribute to fossil fuel formation.
B. atmosphere and
3. Water and ice cause weathering and erosion. geosphere

4. Plants grow in soil. C. atmosphere and
hydrosphere
5. Rising sea level changes habitats.
D. biosphere and
6. Increasing global temperatures melt polar ice caps. geosphere

7. Volcanic eruptions eject gas and debris into the air. E. biosphere and
hydrosphere
8. Plants use carbon dioxide during photosynthesis.
F. geosphere and
9. Wind causes weathering and erosion. hydrosphere

10. Plants use water during photosynthesis.

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