1. Fossils VocabularyFossils & EarthLife in the PastMiscellaneous 10 20 30 40 50

2. Any naturally preserved evidence of life fossil

3. Fossil of an organism that lived during a relatively short time span index fossil

4. The hardened sediment around a dead organism’s body mold

5. The sediment that fills the space left by a dead organism’s body cast

6. _________ stored in the cells of organisms that lived millions of years ago energy

7. Where might you expect to find a fossil of a woolly mammoth? In a glacier

8. ________ tell us more about Earth’s history than the age of certain rock layers. fossils

9. What fossil fuel was formed when swamp plants died millions of years ago and were buried? Coal

10. Which layer of sedimentary rock is the oldest? Bottom layer

11. About how old is the Earth? 4.6 billion years old

12. A period in which a large number of species become extinct Mass extinction

13. Although some species become extinct, others have survived by _______ to changes in their environments. adapting

14. A fossil of a sea animal was found near the top of a mountain. What does this tell you about the history of the mountain? The mountain was under water at one time.

15. When did dinosaurs dominate the land? Age of Reptiles

16. Which organism was an early type of bird that had some characteristics of dinosaurs? Archaeopteryx

17. All living things have _______ stored in their cells. energy

18. Name something that can become a fossil. An impression of a leaf, an animals burrow, etc.

19. What types of organisms are most likely to become fossilized? Organisms with hard tissue that live in water

20. What are 3 types of fossil fuels and where is each type of fossil fuel found? Coal – swamps Natural gas & petroleum - oceans

21. The energy stored in the cells of organisms that lived millions of years ago is used today to do what? 2 things Run machines and make electricity

22. Tie Breaker

23. The process by which continents move slowly from one position to another is known as… Continental drift