Plate Motion

5. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
8. hot liquid rock on the surface of Earth
9. an underwater mountain range formed when two plates move apart
11. a sudden shaking of Earth's surface
13. moving toward the same place
14. the outside or top layer of something
15. gas, lava, and ash are pushed to the surface
17. water
18. a natural spring that sends hot water and steam suddenly into the air from a hole in the ground
20. a diagram that shows what the inside of something looks like
21. any of Earth’s main continuous areas of land

1. to examine in detail for a purpose
2. moving apart in different directions
3. the place where two plates meet
4. how often or fast something happens
6. Earth’s outermost layer of hard, solid rock that is underneath the soil, vegetation,
7. a long, deep indentation in the ocean floor formed when two plates move together
9. the layer of soft, solid rock underneath Earth’s plates
10. the slow pulling apart of land that is caused by plate movement
12. an extinct reptile that lived about 300 million years ago
16. the sudden pushing out of something, such as lava from a volcano
19. one of the very large sections of hard, solid rock that make up Earth’s outer layer