Across
- 4. the height of land above a given level, generally sea level
- 7. used by Hess as evidence for plate tectonics
- 8. one type of evidence used by Wegener to support continental drift
- 9. a theory that the Earth's lithosphere is broken into plates that move slowly over time
- 11. bold or thicker lines that generally occur every fifth contour line
- 12. the difference in elevation from one contour line to the next
- 13. an aerial map that shows the physical features of an area including elevation
- 15. A large, broke section of Earth's lithosphere that can carry continental or oceanic crust
Down
- 1. the theory that states the continents are slowly moving over Earth's surface
- 2. feature formed by an ocean-to-ocean divergent boundary
- 3. a landmass that existed when all continents were joined together over 200 million years ago
- 5. connect points of equal elevation on a topographic map
- 6. the San Andreas Fault is a popular one of these types of boundaries
- 10. the continuous heating and cooling of magma in the Earth's mantle,driving force behind the movement of plates
- 14. feature formed by a continent-to-continent convergent boundary