Across
- 3. measure of how much mass there is in a volume of a substance.
- 4. Divergent, Convergent, Transform
- 6. A depression in the ocean floor
- 9. Under the Oceans, Thin, Dense, Heavy.
- 11. Alfred Wegner hypothesized the theory of _______________
- 13. Movement of Earth's litosphere
- 16. The transfer of energy through space.
- 18. Granite is a light-colored rock and has coarse grain while______ is a dark rock with a fine texture.
- 19. A large landmass that connected all the continents.
- 20. Scientists who study the Earth.
Down
- 1. ________rocks are located at mid-ocean ridges
- 2. Sea-floor spreading causes _____________ zones near the edge.
- 5. with subduction
- 7. Under Continents, Thick, Lighter.
- 8. System of underwater mountain ranges
- 10. Located in the middle of the Atlantic Ocean
- 12. The uppermost part of the mantle and the crust together form a rigid layer.
- 14. Formed when the Indian Subcontinent collided with the Eurasian Plate.
- 15. There are__________ plate tectonics.
- 17. with sea-floor spreading