Across
- 2. Scientist who proposed the theory of Continental Drift
- 3. these mountains in Africa are very similar to the Appalachian Mountains in North America
- 4. when an organism's tissues are replaced by minerals
- 7. trace remains of an organism that lived long ago
- 9. thick, sticky pools of oil residue
- 12. ______ fossils are structures formed in sedimentary rock by animal activity
- 13. ______ rings can be used to evaluate what the weather was like by dendrochronologists
- 15. ______ cores can show the composition of water and gases present when it was formed
Down
- 1. geologic processes that happened in the past in the same manner as they do today
- 5. ________ plates move atop the mantle
- 6. the weather conditions in an area over a long period of time
- 8. a sedimentary rock formed from layers of plant and animals
- 10. hardened tree sap that is buried and preserved
- 11. term used to describe Earth's land masses all connected together as one supercontinent
- 14. ________ mountains are an example of "younger" mountains