1. There are bodies of water found on earth. What do they include?

2. What do we call the vast bodies of salt water that cover almost three fourths of the earth's surface?

3. What is a large inland body of fresh or salt water?

4. What is a large natural stream of water emptying into an ocean?

5. This is a steady flow of water, a small river.

6. What are the three layers of the earth?

7. What layer of the earth do we walk on? It is the thinnest layer.

8. What features does the crust include?

9. Which layer of the earth is the thickest? It is mostly solid rock. Some of it is partly melted rock.

10. What is the layer that is deep inside the earth?

11. What materials is earth mostly made of?

12. What arae rocks made of?

13. This consists of rock and mineral particles mixed with organic matter.

14. What are some examplles of minerals?

15. What do we use to see how easily minerals scratch?

16. What is the preserved remains of a plant, animal or other organism that lived on Earth long ago?

17. Are the oldest rocks always found on the bottom?

18. What are the preserved remains of the activity of an animal that lived long ago?

19. What are some examples of trace fossils