Across
- 2. Means "old" or "ancient".
- 6. ___________waves travel along Earth's surface.
- 7. A __________________ boundary is when two continental plates move away from each other.
- 8. detect and record seismic waves.
- 9. the displacement of fluid as an object floats.
- 10. A ________________ boundary is an area where two tectonic plates are moving toward one another.
Down
- 1. A _____________________ boundary is when two tectonic plates slide past each other.
- 2. Minerals in the ocean floor align with the magnetic field of Earth and solidify, studying this process is called ______________________________.
- 3. A collection of all continents in one landmass that existed 200 million years ago.
- 4. The outermost layer of Earth.
- 5. A _____________ wave is a vibration generated by an earthquake or explosion.