Unit 5: Continental Drift, Plate Tectonics, & Topography
Across
- 2. When one tectonic plate is pulled underneath another moving overtop
- 6. Area on a map that marks geographic directions like North
- 7. The direction that water always flows
- 10. Scientist who developed the theory of continental drift
- 11. When contour lines are spaced rather far apart on a topo map
- 14. The placement of broken down rock material into a new location from its origin
- 15. An area where molten crust material rises to the Earth's surface to form a volcano, like Hawaii
- 17. The outermost layer of the Earth
- 18. Bolded contour lines with elevation markers
- 21. Area on a map that marks scale, symbols, trails, rivers, contour intervals, etc.
- 24. Region of the Earth from the crust to the upper-mantle
- 25. The solid iron-nickel center of the Earth
- 28. Evidence used to prove the theory of continental drift
- 30. The completely liquid iron layer of the Earth
- 32. Plate boundary where two plates move away from each other
- 33. The semisolid layer of the Earth where convection currents drive plate tectonics
Down
- 1. Series of concentric lines on a map marking changes in elevation
- 3. Openings in the Earth's crust where magma makes its way to the surface
- 4. Ancient supercontinent that existed 300 million years ago
- 5. Where two oceanic tectonic plates move apart from each other, forming an uplifted line of new crust on the ocean floor.
- 8. Region of the Earth from the middle-mantle to the upper-mantle
- 9. Theory developed by Alfred Wegener describing the changing surface land of the Earth
- 11. Crustal feature formed by a transform plate boundary
- 12. Theory that describes how the continents drift over the Earth's mantle
- 13. When two oceanic plates diverge away from each other, forming the Mid-Atlantic Ridge
- 16. The breaking down of rock material into smaller pieces
- 17. The difference in elevation between contour lines on a topo map
- 19. The movement of heat energy within the mantle
- 20. Plate boundary where two plates slip and slide past each other
- 22. Representation of land surface features on a map
- 23. Dangerous events that occur due to sudden shifts in the Earth crust and tectonic plates
- 26. Divergent plate boundary on land where new crust collapses as plates move apart
- 27. Plate boundary where two plates move towards each other
- 29. The movement of broken down of rock material
- 31. When contour lines are spaced very close together on a topo map