Vocabulary Crossword Puzzle

2. The rigid, rocky outer surface of the Earth.
8. The lowest region of the atmosphere.
9. Boundary between two plates that are moving apart or rifting.
11. A layer of gas that blocks harmful ultraviolet rays.
14. The largest layer of the Earth.
15. The layer of Earth's atmosphere that is directly above the stratosphere.
16. Contains all of the Earth’s water.
17. Large pieces of land that connect together on Earth’s outer shell.
18. More than half of the illuminated part of the moon is seen.
19. The sphere that involves the rock cycle and all of our studies of plate tectonics.

1. A line on a rock surface or the ground that traces a geological fault.
2. When two or more tectonic plates collide and eventually one slides under the other.
3. Process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle.
4. When two plates meet and slip/grind alongside one another.
5. The part of Earth in which living things interact with nonliving things.
6. The outermost layer of the atmosphere.
7. The second layer of Earth's atmosphere.
10. A sea of gases that support and protect the entire biosphere.
12. You can see the entire illuminated side of the moon.
13. You can see exactly half of the illuminated part of the moon.