1. What can the size and shape of a sand dune tell you about how it was formed?

2. The Hawaiian Islands are the tops of shield cones. What can you conclude about where shield cones formed?

3. What is one way that the biosphere and hydrosphere interact?

4. How do oceans in the hydrosphere affect the atmosphere?

5. Give a brief description of each of Earth's spheres.

6. Explain the multiple meanings of the word "sphere".

7. Summarize how water is distributed on Earth.

8. How might a thunderstorm affect the biosphere and geosphere?

9. What three properties are used to identify surface features?

10. How do contour lines help you visualize a feature of Earth's solid surface?

11. Name and describe the three parts of the continental margin.

12. Earth has lots water. Water covers more than 70% of Earth's surface. Even so, water is a critical resource for all living things. Explain why.

13. Describe how plateaus and plains are similar and how they are different.

14. Trenches are a feature of the ocean floor. What land feature does their shape most resemble?

14. A. river valley; B. canyon; C. mountain range; D. beach

15. Describe how you would use small rocks, pieces of board, and a tub of water to model Earth's lithosphere.