The Theory of Plate Tectonics
Across
- 5. The solid rocky surface and the interior of the planet.
- 6. The air that surrounds Earth.
- 8. German scientist who came up with the theory of the continental drift.
- 9. Causes plates to move apart.
- 10. Sometimes when two continental plates converge, the continental crust gets rumpled and ________.
- 12. One of the most important scientific developments in modern times.
- 15. When two plates meet or ________.
- 16. When one plate might slide under another.
- 17. Circular movement in the mantle, occurs ad the plates move around.
- 18. All the living things on Earth.
Down
- 1. Underneath the lithosphere is a portion of the mantle which is fluid with special properties.
- 2. The part that we stand on and that covers the bottom of all the seas.
- 3. Earth's water, both in the ocean and on the land.
- 4. Tectonic plates floating on this portion of the _________ that is fluid.
- 7. On the US research ship Atlantic, they found that the sediment layer on the floor of the Atlantic was much thinner than originally thought.
- 11. Sections of the plate can get folded and ________.
- 13. The Earth's crust is composed of solid ______________ floating on the mantle.
- 14. A mountain range resulted from a _________ convergence.