Plate Motion

5. Earth’s outermost layer of hard, solid rock that is underneath the soil, vegetation, and water
7. a diagram that shows what the inside of something looks like
10. the layer of soft, solid rock underneath Earth's plates
11. how often or fast something happens
14. a long, deep indentation in the ocean floor formed when two plates move together
17. any of Earth's main continuous areas of land, such as Africa, Asia, and North America
20. the slow pulling apart of land that is caused by plate movement
22. the place where two plates meet
23. hot liquid rock below the surface of Earth

1. the sudden pushing out of something, such as lava from a volcano
2. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
3. a natural spring that sends hot water and steam suddenly into the air from a hole in the ground
4. any of the many processes (such as eruptions and lava flows) in which gas, lava, and ash are pushed out on the surface of Earth
6. moving apart in different directions
8. moving toward the same place
9. hot liquid rock on the surface of Earth
12. a sudden shaking of Earth's surface
13. something we observe to be similar over and over again
15. an extinct reptile that lived about 300 million years ago
16. to examine in detail for a purpose
18. an underwater mountain range formed when two plates move apart
19. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
21. one of the very large sections of hard, solid rock that make up Earth’s outer layer