Plate Tectonics
Across
- 2. stress that occurs when the forces act to squeeze an object
- 3. Process of which new oceanic crust is formed
- 7. created by transform boundaries.
- 11. tectonic plates which include oceanic and continental
- 12. properties that involve a reaction to various properties
- 14. made of iron and nickel
- 15. when the denser oceanic plate subducts under the continental plate
- 17. makes up 1 percent of earth
- 18. lower part of the mantle
- 19. only liquid layer in the earth
Down
- 1. theory developed by Alfred Wegner
- 4. the theory explains how large pieces of the earth's crust move and change shapes
- 5. plates sliding past each other
- 6. Moving apart
- 8. Colliding
- 9. plastic like layer of earth
- 10. makes up 66 percent of earth
- 13. center of earth
- 16. one of the two types of layers in the earth