Chapter 4 and 5 Crossword

4. A crack in Earth's surface caused by the movement of plates.
7. scientist that created the idea of continental drift.
8. A type of stress that occurs from two things being pushed together.
10. The type of wall that sits under the fault line.
13. A large underwater mountain range that spews magma.
18. Large sections of land that are moved by convection currents in the mantle.
19. The theory that plates move because of convection currents in the mantle.
20. The measure of total energy of an earthquake.

1. A plate boundary in which two plates move apart.
2. A type of plate boundary where two plates move towards each other.
3. A pulling or pushing force on rocks.
5. A type of boundary where two plates will slide past each other. This usually causes earthquakes.
6. A process where magma from mid-ocean ridges hardens into rock which gets pushed outwards.
9. The process where denser rocks sink back into the mantle
11. A large trench where rocks subduct.
12. A upwords fold in Earth's crust caused by compression.
14. A mountain that has a crack in the earth's surface that allows magma to flow up..
15. The type of wall that sits over the fault line.
16. A super continent that existed 200-300 million years ago.
17. A downwards fold in Earth's crust caused by compression