Plate Motion

4. section diagram that shows what the inside of something looks like
6. hot liquid rock on the surface of Earth
7. a the sudden pushing out of something, such as lava from a volcano
9. one of the very large sections of hard, solid rock that make up Earth's outer layer
13. a long, deep indentation in the ocean floor formed when two plates move together
15. moving apart in different directions
16. an underwater mountain range formed when two plates move apart
17. the layer of soft, sold rock underneath Earth's plates

1. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
2. how often or fast something happens
3. moving toward the same place
5. a sudden shaking of Earth's surface
8. the place where two plates meet
10. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
11. a sudden shaking of Earth's surface
12. any of Earth's main continuous areas of land, such as Africa, Asia, and North America
14. the slow pulling apart of land that is caused by plate movement
17. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see