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| Earth's innermost layer - comprised of dense elements - radius 3,400km |
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| thin outer layer of Earth - less than 1% Earth's mass |
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| glide across asthenosphere - continents located on them - site of most geologic activity |
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| surrounds the Earth - mixture of gases (nitrogen, O2, CO2, etc.) |
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| flow of heat from a warmer object to a colder one |
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| atmospheric layer nearest Earth's surface- almost all weather occurs here |
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| process in which gases trap heat near Earth - without ths Earth would be too cold to live |
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| continuous movement of water into the air, onto the land, and then back to water sources |
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| concentration of dissolved salts in ocean |
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| 3% of Earth's water is this - most in form of glaciers and icecaps |
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| narrow layer around Earth where life can exist |
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| flow of energy in which BOTH matter and energy are EXCHANGED between a system and a surrounding environment |
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| energy (such as from sun) enters the environment but DOES NOT make it out |
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| solid part of Earth's interior - all rock, soils, and sediment on Earth's surface |
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| layer beneath lithosphere -a plastic, solid layer of the mantle - slow moving rock flows here |
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| layer above troposphere - ozone (O3) in this layer absorbs's sun's UV energy |
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| layer beneath the crust- 64% of Earth's mass |
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| large water droplets that fall as rain, snow, sleet or hail |
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| water vapor that forms water froplets on dust particles that form clouds and fall as rain |
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| Earth's outer layer that includes the crust and uppermost part of the mantle - divided into tectonic plates |
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| removal or transport of surface material by water or wind |
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| molecule made up of 3 oxygen atomes - found in stratoshpere - absorbs UV radiation |
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| transfer of energy across space and in the atmosphere |
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| transfer of heat by air currents |
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| process by which liquid water is heated by the sun and then rises into the atmosphere as water vapor |
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