Plate motion

6. evidence of life from the past, such as fossilized bones, footprints, or leaf prints.
7. the sudden pushing out of something, such as lava from a volcano.
8. how often or fast something happens.
11. an underwater mountain range formed when two plates move apart.
14. the layer of soft, solid rock underneath earths plates.
15. something we observe to be similar over and over again.
16. moving apart in different directions.
17. hot liquid rock below the surface of earth.
18. earths outermost layer of hard, solid rock that is underneath the soil, vegetation, and water.
21. one of the very large sections of hard, solid rock that make up earths outer layer.
22. the outside or top layer of something.
23. a diagram that shows what the inside of something looks like.

1. any of the many processes in which has, lava, and ash are pushed out on the surface of earth.
2. a hole in the earth that shoots hot water and steam into the air.
3. a word for the USA and Asia and Africa and more.
4. the place where two plates meet.
5. moving toward the same place.
9. to examine in detail for a purpose.
10. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see.
12. a sudden shaking of earths surface.
13. hot liquid rock on the surface of earth.
19. a long, deep indentation in the ocean floor formed when two plates move together.
20. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune.