Plate Tectonics
Across
- 4. a part of the earth in between the crust and mantle.
- 6. a theory that all continents were once joined.
- 8. Alfred _______ had a theory that all continents were once joined.
- 12. a part of the earth that forms the oceans.
- 14. large mountain in which lava and gas can escape from.
- 16. underground hot volcanic areas.
- 17. a massive wave.
- 18. when two plates gradually move away from each other.
- 19. a collection of ideas used to explain something that has not been confirmed.
- 20. a collection of trustworthy facts.
Down
- 1. the slow, gradual movement of continents.
- 2. a theory involving the movement and structure of plates.
- 3. a part of the earth that is in between the core and the crust.
- 5. when two continents slide across each other.
- 7. a hot fluid occurring beneath the surface of earth.
- 9. movement in plate tectonics causing a violent shaking.
- 10. a naturally occurring land feature.
- 11. what remains of a prehistoric animal or plant.
- 13. a part of the earth that forms the land masses.
- 15. when two plates gradually move towards each other.