Across
- 3. The type of boundary where two tectonic plates slide past each other horizontally.
- 7. The solid, outermost layer of the Earth that includes the crust and upper portion of the mantle.
- 9. A chain of island volcanoes that form when two oceanic plates converge.
- 10. The theory that explains the movement and interaction of the Earth's lithosphere (the rigid outer shell) and how it is divided into several large and small plates.
- 12. The partially melted layer of the Earth located beneath the lithosphere.
- 13. The transfer of heat in a fluid (liquid or gas), caused by differences in temperature and density.
- 14. The occurrence of earthquakes and other ground vibrations.
- 15. The type of boundary where two tectonic plates move apart or separate.
Down
- 1. The type of boundary where two tectonic plates collide or come together.
- 2. An underwater mountain range formed by volcanic activity where new oceanic crust is created. Formed when two oceanic plate boundaries diverge.
- 4. The process in which one tectonic plate is forced beneath another plate and sinks back into the mantle.
- 5. A long, narrow valley formed by the separation of tectonic plates. Formed when two continental plates diverge.
- 6. The hypothesis that suggests that the continents were once a single landmass and have since moved apart.
- 8. A mountain or hill that has a vent through which lava, gases, and other materials erupt from beneath the Earth's surface. Formed at convergent plate boundaries.
- 11. The thin and solid outermost layer of the Earth.