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Unit 5 Climate and Weather

Air Pressure A force exerted by moving air molecules.
density The amount of matter in a given amount of space.
convection The method of heat transfer through a fluid due to density differences.
conduction A method of heat transfer through direct contact. (must be touching)
radiation Energy that comes from a source and travels through some material or through space. Light, heat and sound are types of radiation.
wind The horizontal movement of air caused by differences in air pressure. It moves from higher pressure to lower pressure areas.
weather The condition of Earth's atmosphere at a particular time and place.
climate The characteristic weather conditions in an area over a long period of time.
evaporation The process in which a liquid changes to a gas when heated.
condensation The process in which a gas changes into a liquid when cooled.
precipitation Water that falls to Earth's surface in the form of rain, hail, sleet or snow.
Coriolis Effect The influence of Earth's rotation on objects that move over earth. This causes currents to move clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere.
Jet Stream A narrow, variable band of very strong, predominantly westerly air currents encircling the globe several miles above the earth.
Earth's Axis the imaginary line which goes through the north and south poles and around which Earth spins.
Orbit The curved path of a celestial object or spacecraft around a star, planet, or moon
Rotation The action of rotating around an axis or center
Absorption The process or action by which one thing absorbs or is absorbed by another
Air Masses A body of air with horizontally uniform levels of temperature, humidity, and pressure.
Weather fronts a boundary separating two masses of air of different densities
Created by: lcrowe