| A | B |
|---|
| crust | the surface of the Earth |
| mantle | the middle part of the Earth; made of molten rock |
| Core | the two part center of the Earth; the outer core is molten iron and the inner core is solid iron |
| granite | the rock composing the part of the Earth's crust that are the continents |
| basalt | the substance that makes up most of the oceanic part of the Earth's crust |
| molten | melted; usually refers to melted metals |
| plate tectonics | the movement of large sections of the Eaerth's crust called plates. |
| Pangea | the single landmass thought to have existed before it broke up into the seven continents |
| convection currenets | circulating fluid currents found in the mantle |
| earthquake | shaking of the Earths surface caused by energy when plates run together |
| volcano | opening in the surface of the Earth that magma shoots out of |
| geyser | water heated by the mantle of the Earth that shoots out of a break in the Earth's crust |
| fault | a crack in the Earth's crust |
