Plate Tectonic

3. Vast, water-filled areas (such as the Atlantic Ocean) that formed at divergent boundaries between two slabs of oceanic crust.
6. The study of the origin, history, and structure of Earth.
8. A boundary between two tectonic plates that are sliding past each other.
9. One of the large slabs of solid rock that make up Earth's lithosphere. It is also called a lithospheric plate.
11. The movements and interactions of the large slabs of solid rock that make up Earth's lithosphere.
15. The type of crust that makes up Earth's ocean floor.
16. A shaking of the ground, usually produced by the sudden breaking or shifting of a large slab of rock. Earthquakes usually result in seismic waves.
17. The transfer of energy via the movement of particles within a liquid or gas.
18. A very long, narrow, and deep valley on the ocean floor.
19. A range of undersea volcanoes that forms at a divergent boundary.
20. The change in the location of Earth's continents over time.
21. The layer of Earth that lies between the crust and the core.
22. The outer layer of Earth that lies between the mantle and the surface and makes up the continents and the ocean floor.
23. The type of crust that makes up Earth's continents and the continental shelves.
24. The transfer of energy from one object to another by direct contact. Thermal energy transfers between colliding particles that make up matter at different temperatures.

1. The preserved remains or traces of an organism that lived in the geologic past.
2. Lines where two tectonic plates touch and interact.
4. The process that occurs between plates at a convergent boundary. The edge of the denser plate moves under the edge of the less dense plate and sinks into the mantle.
5. Strings or groups of mountains that are connected and formed by the same process.
7. The process that occurs along a mid-ocean ridge and causes an ocean basin to grow wider. It occurs as new oceanic crust made of lava from volcanoes hardens and becomes part of two diverging plates.
10. A hot, dense, mixture of melted rock and gases found beneath Earth's surface.
12. The theory that explains how major features of Earth's surface form and change due to the movements of the plates that make up the lithosphere.
13. A boundary between two tectonic plates that are moving toward each other.
14. A boundary between two tectonic plates that are moving away from each other.