| A | B |
|---|
| geosphere | solid part of Earth consists of all rock and soils and loose rocks on Earth's surface |
| crust | Earth's thin outer layer made of light elements, thinnest layer |
| mantle | Layer beneath the crust (think middle) |
| core | Earth's innermost layer composed of densest elements |
| *lithosphere | *Earth's outer layer, cool ridged layer includes crust and part of mantle. |
| **asthenosphere | **layer beneath lithosphere and is plastic, solid layer of the mantl made of rock that flows slowly |
| tectonic plate | pieces of the lithosphere that glide across and where continents located (and earthquakes on boundaries) |
| erosion | removal and transport of surface material (can be Water or Wind Erosion) |
| atmosphere | Mixture of gases (N, O, CO2, and others) that surrounds the Earth |
| troposphere | air level nearest to Earth to 18 km where all the weather occurs. |
| stratosphere | air level about troposphere from 18km to 50km where ozone layer if found |
| ozone | O3 concentrated in the ozone layer reducing amount of UV radiation that reaches the Earth. |
| radiation | transfer of energy across space and in atmosphere (think sun) |
| conduction | flow of heat from warmer to colder object in direct contact |
| convection | transfer of heat by air currents (think vents) |
| greenhouse effect | process gases trap heat near the Earth |
| water cycle | continuous movement of water onto land, and then back to water sources |
| evaporation | liquid water is heated by the sun and rises to the atmosphere in form of water vapor |
| condensation | water vapor forms water droplets on a surface (dust for clouds) |
| precipitation | larger droplets fall from clouds in form of rain, sleet, snow or hail |
| salinity | concentration of all the dissolved salts the ocean water contains. |
| fresh water | 3% of all water, mostly locked up in icecaps and glaciers |
| biosphere | narrow layer around Earth's surface in which life can exist |
