Plate Tectonics Key Terms
Across
- 4. the first layer of the earth
- 7. sliding against each other
- 9. ridge where new ocean floor is created as the Earth's tectonic plates spread apart
- 11. boundaries between plates
- 13. plate the thickest plate
- 14. going towards each other making contact
- 17. gigantic pieces of the Earth's crust and uppermost mantle
- 18. when one plate goes up and another goes down
- 20. the less densest layer
Down
- 1. area of rock that has been formed by stress
- 2. a area facturing between rocks and stress
- 3. plate the thinner plate
- 5. A deep depression in the ocean floor caused by the convergence of plates and the resulting subduction of one plate.
- 6. moving away from each other
- 8. a split between two bodies
- 10. the layer in the middle of the crust and outercore the liquid core
- 12. a long trough bounded by two or more faults.
- 15. gigantic pieces of the Earth's crust and uppermost mantle
- 16. the solid core
- 19. the center of the earth