Across
- 2. both pressure and temperature _____ with depth
- 3. there are _____ layers of mantle
- 8. outer layer of earth
- 9. extrusive rocks are formed by ____
- 10. formed by sediment
- 12. continental drift is caused by _______ currents
- 16. earth's crust divided into large pieces
- 17. formed by lava or magma
- 19. the study of planet earth
- 20. seismic waves that are slow and s shaped
Down
- 1. igneous rocks formed by magma
- 4. when transform plates slide, this natural disaster occurs
- 5. hot middle layer of earth
- 6. ______ plate boundaries collide
- 7. _______ plate boundaries slide
- 8. very center of the earth
- 11. _______ plate boundaries divide
- 13. Which crust is the most dense?
- 14. formed at convergent boundaries
- 15. rock changed by temp/pressure
- 16. seismic waves that are phirst, phast, and push
- 18. occurs when a denser plate sinks under another less dense plate