Plate Tectonics
Across
- 1. Type of plate boundary that destroys things
- 3. This boundary can form a rift valley
- 7. Part of the pattern created on the ocean floor
- 11. The part of the crust made of basalt
- 12. What oceanic and continental plates create on a convergent boundary
- 13. What happens at a transform boundary
- 14. One of the items in the earth that helped prove that Pangea existed
- 15. When subduction takes place it happens at a __________ boundary
- 17. Cracks in Earth’s crust after plates rub against each other
- 18. A deep valley formed by plates moving away from each other
- 19. The one continent that existed millions of years ago
Down
- 2. The process of one plate sinking underneath another
- 3. What Ocean floor sinks into back to the mantle
- 4. What two continental plates create on a convergent boundary
- 5. A theory about seafloor spreading, Earth’s plates and the plates motion
- 6. The part of the ocean floor that lava comes out of
- 8. The adding and widening of Earth’s oceans
- 9. The part of the crust made of granite
- 10. The idea that continents slowly move over the Earth’s surface
- 16. The pieces of earth’s lithosphere