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Weather
5th Grade Science Vocabulary
Term | Definition |
---|---|
weather | condition of the atmosphere at a specific place and time (weather is hard to predict; changes constantly) |
convection | transfer of heat energy through liquids and gases (boiling water) |
radiation | transfer of energy through electromagnetic waves, such as the sun's rays (sun rays, toaster) |
climate | average weather of an area over a period of time |
meteorologist | a scientist that studies weather |
conduction | transfer of heat through direct contact |
evaporation | a change from a liquid to a gas |
water cycle | the movement of water between the earth's surface and the atmosphere |
transpiration | a plant's release of water vapor into the air |
condensation | the change from a gas to a liquid |
precipitation | rain, snow, sleet, hail |
run-off | excess water that the ground cannot absorb that flows over the land |
air mass | a large body of air with similar temperature and humidity |
front | the boundary between two different air masses (cold or warm) |
prevailing wind | a global wind pattern that blows consistently in the same direction |
jet stream | air current in the upper atmosphere that goes from West to East |
current | a mass of water or air that moves in a specific direction |
latitude | a distance north or south of the equator |
equator | the imaginary line that divides the northern and southern hemispheres (0 degrees latitude) |
altitude | height above sea level. Elevation is a related term |
humidity | the amount of water vapor in the air |
low pressure | a mass of warm moist air |
high pressure | a mass of cool dry air |
weather instruments | tools that help measure weather conditions (barometer, anemometer) |
stratus | layered clouds |
cumulus | puffy clouds |
nimbus | storm clouds |
cirrus | wispy clouds |
land breeze | a breeze from the land towards water during the night |
sea breeze | a breeze from the sea towards the land during the day |