Across
- 3. It gets buried and goes deeper and deeper while being buried by sediment
- 8. when the earth was one big continent
- 9. they stop when they hit a liquid
- 10. How scientists find out how old a rock is
- 11. where the seismic waves rupture
- 13. Rock formed from cooled lava
- 16. Rock formed from cementation and pressure
- 17. The first wave to appear
Down
- 1. When oceanic plate goes under another plate
- 2. solid rock that is composed of the upper crust and mantle
- 4. Melted rock under the surface
- 5. Forces pushing objects into themselves
- 6. Melted rock above the surface
- 7. the study of fossils
- 12. How packed molecules are
- 14. fast moving molecules
- 15. where rocks soften and partly melt