Across
- 1. Boundaries/ Locations in which two tectonic plates move apart from one another
- 5. Ancient Supercontinent
- 7. Puzzle/ One of the first pieces of evidence supporting continental drift.
- 11. A device uses to detect small changes in magnetic fields
- 13. Push/ The weight of a plate forces the plate toward the trench formed by a subduction zone
- 15. Evidence of Pangaea's existence
- 18. The process of a dense oceanic plate descending beneath another
- 19. Valley/ A long, narrow depression in Earth's crust
Down
- 2. What is often found at Divergent, Convergent and Transform Boundaries
- 3. Reversal/ A change in Earth's magnetic field
- 4. The study of Earth's magnetic record
- 6. Pull/ The weight of a plate pulls the plate down into the subduction zone
- 8. Boundaries/ Locations in which two tectonic plates move toward each other
- 9. Boundaries/ Where two tectonic plates slide horizontally past one another
- 10. Wegener/ German scientist who developed the hypothesis of continental drift
- 12. of Plate Tectonics/ Theory which states that Earth's crust is broken into massive slabs, called plates
- 14. A line on a map that connects points with the same age
- 16. Spreading/ A theory that states that new ocean crust is formed at ocean ridges and is destroyed at trenches
- 17. A technological advance that uses sound waves to measure water depth