Module 2 Lesson 3

3. Large landmasses on Earth’s crust
5. Large, slow-moving sheets of ice that carve U-shaped valleys
7. The violent crust movement that is triggered when plates slide past each other
10. Theory that continents slowly moved over millions of years.
12. Rock broken into small pieces through natural processes
14. Tall landforms created by plate collisions
15. The liquid rock inside Earth that rises when plates separate

1. A cone-shaped landform that can erupt, like Mount Saint Helens.
2. The breaking down of rock into smaller pieces.
4. Region around the Pacific plate where many quakes and volcanoes occur (three words).
6. The theory used by geographers to explain how forces below Earth’s crust shape landforms
8. A deep valley in the ocean floor formed when one plate sinks under another.
9. The process that moves sediment from one location to another.
11. Hills, mountains, and other natural features on the planet's surface
13. The supercontinent proposed by Alfred Wegener.