Tectonic Plates

4. Huge pieces of crust that move across the Earth's mantle.
5. The last supercontinent that existed ~225 mya.
6. The most common effect of transform boundaries.
9. This word means slide along each other.
11. A description you can make by looking at something.
12. A guess you can make about something based on your observations.
14. This word describes one plate going under another.
16. Convergent plates often cause __ to form.
17. Alfred __ is the first person recognized as predicting the continents used to be connected.

1. Under the crust is a layer of __.
2. Because of __ __, it was easy for other geologists to ignore Wegener's claims.
3. This word means that layers of rock are unbroken.
7. Continent shape and fossil record were both pieces of __ for continental drift.
8. This word means move together.
10. It is because of the force of __ that the tectonic plates continue to move.
13. When two continental plates hit each other, they form __.
15. This word means move apart.