Earth Science Chapter 10 Test Review
1. Preserved remains or traces of an organism
2. Living things die and their remains are buried by sediment. Sediment becomes rock, preserving part of the animal.
3. Earth and organisms have changed
4. The process by which different kinds of living things have changed over long periods of time
5. Mineral replaces all or part of an organism
6. The age of the rock compared to other rocks
7. The oldest layer is on the bottom; each layer is younger than the layer below it
8. Absolute age of rocks
9. Eras
10. Periods
11. Earth forming from a mass of dust
12. Pangea
13. Mammals
14. An organism no longer exists on Earth
15. An intrusion is always younger
16. Fossils
17. How animals have changed over time
18. Minerals replace all or part of the organism
19. The age of a rock compared to other rocks
20. A gap in the geologic record where rock layers are lost
21. Cenozoic
22. The older layers are on the bottom; each layer is younger than the layer below it
23. See page 322
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