History & Bathymetry

1. England, Spain, Portugal, and _____ were all countries that had claims in the Americas by 1700
3. An eroded island
4. Which was the first to exist: Plants or Animals?
6. A seamount that becomes above the surface of the water and provides dry land
7. An underwater mountain
10. Ocean ______ is a portion of the Earth that is underwater, extending from one continent to another
13. What is at the center of the Earth
14. Shelf _______ is the point in which the Continental Shelf rapidly starts to get more deep and becomes the Continental Slope
15. Sailed past Cape Bojador, proving that that wasn't where the Earth ended
18. East of the Line of Demarcation belonged to Portugal and the west side belonged to ___________
19. Deepest part of the ocean, happens when two plates collide and one plate is forced downward
20. The Continental _______ is shallow ocean water that slowly gets deeper

2. The thinnest layer of the Earth
5. Mostly flat terrain of the ocean floor
8. The ______ crust is old (some as old as 3.6 billion years) and less dense
9. A hydrothermal vent that produces sulfur gases
11. The _______ crust is young (>200 million years) and more dense
12. Was the early leader of exploration largely due to Prince Henry
16. The Continental _______ is a steep decline in which the water becomes more deep
17. Sailed West and discovered the Americas