| A | B |
|---|
| Geosphere | rock portion of the earth |
| Crust | outer layer of the earth |
| mantle | layer of rock between core/crust |
| core | inner most layer of earth |
| lithosphere | solid outer layer and upper part of mantle |
| asthenosphere | under the lithosphere, allows tectonic plates to move |
| erosion | earth surface is loosened, dissolved or worn away |
| seismology | study of earthquakes |
| fault | a crack in the crust |
| magnitude | measure of the amount of energy released by an earthquake |
| atmosphere | mixture of gases that surrounds the earth |
| conduction | transfer of heat through material |
| convection | transfer of heat by currents |
| hydrosphere | water on the planet |
| evaporation | water from a liquid to a gas |
| condensation | water from a gas to a liquid |
| precipitation | any form of water that falls |
| salinity | measure of the dissolved salt |
| aquifers | underground layer of rock that holds water |
| biosphere | regions of the earth occupied by living organisms |
