Plate Tectonics

3. Layer of Earth beneath the crust and above the core, composed of solid rock
4. Earth's outermost layer, composed of solid rock, and divided into continental and oceanic types.
12. Supercontinent that existed over 200 million years ago.
13. Theory proposed by Alfred Wegener to explain the movement of continents.
14. Point on Earth's surface directly above the focus of an earthquake.
15. Fracture in Earth's crust along which movement has occurred.
16. Type of mountain formed by the folding of rock layers due to tectonic forces.
17. One of the major tectonic plates covering parts of Europe and Asia.
18. Sudden shaking or trembling of the ground caused by the movement of tectonic plates.

1. Boundary where two tectonic plates collide.
2. Vibrations that travel through Earth's crust during an earthquake.
5. Boundary where two tectonic plates slide past each other horizontally.
6. Boundary where two tectonic plates move apart.
7. tectonics Theory that Earth's outer shell is divided into several plates that glide over the mantle.
8. The number of major tectonic plates that make up Earth's lithosphere.
9. Where the edges of tectonic plates interact
10. Underwater mountain range formed by divergent plate boundaries.
11. Jamaica, Haiti and Dominica Republic are located on this minor plate.
13. Earth's innermost layer.
16. Point within Earth where an earthquake originates.