Across
- 4. the hottest part of the earth
- 7. molten rock found beneath the earth
- 9. where the edges of two or more tectonic plates meet
- 10. current caused by heating and cooling
- 12. to explode; to break out with force
- 13. boundary along which two tectonic plates scrape past each other
- 14. a fluid layer about 2400km think
Down
- 1. super continent that included all of the landmasses on Earth
- 2. large moving piece of the earth's crust
- 3. boundary along which two tectonic plates move away from each other
- 5. a layer of the earth that makes up 85% of the entire planet
- 6. a mountain that opens downward to a pool of molten rock
- 8. mealted materia
- 11. the layer of the earth that is 1300km thick
- 13. the thinsest part of the earth surrounding the mantle