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the spheres
| Question | Answer |
|---|---|
| all the water on earth | hydrosphere |
| biosphere | regions of the world supporting life |
| atmosphere | the layers of gasses surrounding the earth |
| lithosphere | the earths crust and solid mantle |
| nitrogen, oxygen, carbon dioxide (the air) | what are some layers of gasses surrounding the earth |
| lithosphere is the ...? | land |
| how much of the earth does the lithosphere cover ? | 1oo% |
| crust | the outermost solid shell of the earth |
| how thick is the earhts crust | between 3-5 |
| the crust is broken up into different ..? | plates |
| mantle | largest layer of the earth; 1800 miles thick |
| what is the mantle made of | hot, thick, dense, rock and if flows thick like a liquid. |
| core | center of the earth (iron and nickel) |
| outer core is ..? | liquid |
| inner core is ..? | solid |
| what keeps the molten iron and nickel solid | intence pressure of gravity |
| what is continental shelf | the underwater extension of the continent where the sea is relatively shallow copared with the open ocean |
| where is the continental slope located | between the outer edge of the continental shelf and the deep ocean floor |
| what is topography | study of surface shape and features of the earths |
| what are topographic maps | a type of map representing the topography of an area by using contour lines with set distances between them. |