Across
- 3. formed 300 million years ago
- 8. to break down & scatter
- 9. formed 470 million years ago
- 11. rate at which mountains shrink
- 12. to build up
- 13. South America and _________ were once together
- 14. when two plates do this they form mountains
- 15. older rock is found ________ younger rock
- 16. mountain that is created through a constructive process
- 17. rate at which mountains grow
Down
- 1. evidence we can find that proves plates were once together
- 2. majorly responsible for separating Pangea
- 4. opening in Earth's crust
- 5. more dense plate found under large bodies of water
- 6. less dense plate found under continents/land
- 7. original supercontinent
- 9. younger rock is found _________ older rock
- 10. mountain that has two rates at equilibrium
- 12. process that moves oceanic plates below continental plates