HW #20

Visit this website about climate change and answer the following questions:

http://climatekids.nasa.gov/menu/big-questions/

Go to the section entitled: "What is the big deal with carbon?"
1. Explain how carbon, the element, is different than when it is in a compound with other elements.
2. Explain how oil and natural gas are formed in our Earth.
3. Explain what is good and what is bad about the greenhouse effect.

Go to the section entitled: "What is happening in the ocean?"

4. Explain how relationship between algae and coral is beneficial to each species.

5. How are ocean animals that have shells and corals affected by the changing ocean.

6, What is more dense: hot or cold ocean water? What effect does salt have on density?