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Weather Vocab

Science

TermDefinition
Thermal Energy The sum of the kinetic energy and the potential energy of the particles that make up the object.
Energy Power derived from the utilization of physical or chemical resources, especially to provide light and heat.
Convection Movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity.
Jet Stream A narrow variable band of very strong predominantly westerly air currents encircling the globe several miles above the earth.
Coriolis Effect An effect where a mass moving in a rotating system experiences a force acting perpendicular to the direction of motion and to the axis of rotation.
Global Winds Winds that occur in belts that go all around the planet.
Trade Winds A wind blowing steadily towards the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea.
Westerlies The belt of prevailing westerly winds in the mid-latitudes of the northern and southern hemispheres.
Polar Easterlies The dry, cold prevailing winds that blow around the high-pressure areas of the polar highs
The Doldrums An equatorial region of the Atlantic Ocean with calms, sudden storms, and light unpredictable winds.
Horse Latitudes A belt of calm air and sea occurring in both the northern and southern hemispheres between the trade winds and the westerlies.
Local Wind Patterns Air that flows over a smaller area of the Earth due to differences in air pressure.
Sea breeze A breeze blowing toward the land from the sea, especially during the day owing to the relative warmth of the land.
Land breeze A breeze blowing toward the sea from the land, especially at night, owing to the relative warmth of the sea.
Atmosphere The envelope of gases surrounding the earth or another planet.
Troposphere The lowest region of the atmosphere.
Stratosphere The layer of the earth's atmosphere above the troposphere.
Mesosphere The region of the earth's atmosphere above the stratosphere and below the thermosphere.
Thermosphere The region of the atmosphere above the mesosphere.
Exosphere The outermost region of a planet's atmosphere.
Oxygen A colorless, odorless reactive gas.
Nitrogen The chemical element of atomic number 7, a colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere.
Argon The chemical element of atomic number 18, an inert gaseous element of the noble gas group.
Trace Gases Gases that are present in small amounts within an environment such as a planet's atmosphere.
Water Vapor The gaseous phase of water.
Air Pressure The force exerted on a surface by the air above it as gravity pulls it to Earth.
Mercury Barometer An instrument used for measuring the change in atmospheric pressure.
Aneroid Barometer A device for measuring atmospheric pressure without the use of fluids.
Low Pressure Physical pressure that is lower than a standard or average pressure.
High Pressure Physical pressure that is higher than a standard or average pressure.
Created by: user-1589762
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