Oceanagraphy

6. An underwater mountain range formed by plate tectonics. It is where magma rises from the Earth's mantle, causing the seafloor to spread.
9. a theory that proposed electricity gave life on earth suitable conditions
13. the outer layer of earth
14. sir Issac newton created this theory
16. hydrothermal vents found on the ocean floor, typically along mid-ocean ridges. They release superheated water that has many nutrients.
18. deepest point in all the ocean
19. a region that forms where tectonic plates move apart. These are often found along mid-ocean ridges, and magma rises to the surface.
20. A large, mountain that rises from the ocean floor but does not reach the water's surface, formed from extinct volcanoes.

1. a margin near a trench or underwater volcane
2. erosion channel of an underwater slope
3. the ocean crust if much more what than the contential crust
4. what is in the smoke in white and black hydrothermal vents
5. A type of hydrothermal vent typically at mid-ocean ridges. It releases, mineral-rich water that appear white due to of barium sulfate, which mixes with cold seawater.
7. A underwater volcanic mountain with a flat top, created by erosion from waves then went under water due to rising sea levels.
8. 1st accomplished western navigation in the medeterianian
10. where was the first laboratory designed for oceanic study
11. when 2 techtonic plates move apart
12. First to circumnavigate the globe
15. when 2 techtonic plates move together
17. first life forms on earth