Plate Boundary Crossword

2. The type of boundary that forms a mid ocean ridge.
4. The type of boundary that forms a trench.
5. The place where two plates meet.
9. How often or fast something happens.
12. A long, deep indentation in the ocean floor formed when two plates move together.
13. The sudden pushing out of something, such as lava from a volcano.
15. An extinct reptile that lived about 300 million years ago.
16. A sudden shaking of Earth's surface.
18. A natural spring that sends hot water and steam suddenly into the air from a hole in the ground.
19. To examine in detail for a purpose.
20. An object, diagram, or computer program that helps us understand something by making it simpler or easier to see.

1. An underwater mountain range formed when two plates move apart.
3. A feature that forms on the surface of a planet, such as a mountain, channel, or sand dune.
6. Hot liquid rock on the surface of Earth.
7. Something we observe to be similar over and over again.
8. Evidence of life from the past, such as fossilized bones, footprints, or leaf prints.
10. A set of interacting parts forming a complex whole.
11. A diagram that shows what the inside of something looks like.
14. One of the very large sections of hard, solid rock that make up Earth’s outer layer.
17. The layer of soft, solid rock underneath Earth's plates.