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Sidwell
6th grade Weather Vocab
Term | Definition |
---|---|
atmosphere | envelope of gases that surround the Earth |
gases in our atmosphere | 78% Nitrogen from decaying plants and animals AND 21% Oxygen from plants |
air pressure | the force of air molecules, measured with a barometer and decreases as you move up |
troposhere | most of the mass of the atmosphere is here, we live here |
stratosphere | the ozone layer is located here |
mesosphere | coldest layer and meteor burn up here |
thermosphere | split into two: ionosphere and exosphere |
heat | the transfer of thermal energy from hot to cold |
conduction | the transfer of heat by direct contact (touching) |
convection | the transfer of heat by circulation of a liquid or gas (convection currents) |
radiation | the transfer of heat by electromagnetic waves (sunlight changes into heat) |
land vs. water | land heats up and cools down quicker than water |
causes wind | unequal heating of the earth and air likes to move from cool to warm areas |
local winds | winds that blow over short distances in small areas (land and sea breezes) |
global winds | winds that blow steadily from specific distances over long periods of time, large areas |