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27 Cards in this Set
- Front
- Back
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Earth Science
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The study of non-living parts of our world.
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Geology
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The study of the history, structure and orgin of the earth.
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Oceanography
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The study of the oceans.
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Meterology
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the study of the atmosphere
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Astronomy
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The study of the universe.
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Weather
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The condition of earth's atmosphere at a particular time and place.
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Atmosphere
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The envelope of gases that surround the planet.
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Water vapor
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Water in the form of a gass
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Density
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The amount of mass in a given volume.
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Air pressure
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The result of the weight of a column of air pushing on an area.
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Barometer
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An instrument used to measure air pressure.
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Mercury Barometer
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A barometer that consists of a long glass tube that is closed on one end and open at the other.
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Aneroid Barometer
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A barometer that has an altright metal chamber.
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Altitude
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The distance above sea level.
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Mass
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How much matter an object is made up of.
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Volume
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How much space an object takes up.
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Humidity
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the amount of water vapor in the air
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Relative Humidity
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the percentage of water vapor that is in the air compared to the maximum amount of water vapor the air can hold
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psychrometer
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an instrument that measures relative humidity
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water cycle
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the movement of water through Earth's systems, powered by the sun's energy
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Evaporation
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the process by which molecules of liquid water escape into the air after becoming water vapor
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Condensation
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the process by which molecules of liquid water escape into the air after becoming water vapor
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Precipitation
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any form of water that falls from clouds and reaches Earth's surface as rain, snow, sleet or hail
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dew point
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the temperature at which condensation begins
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cirrus clouds
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wispy, feathery clouds that form at high altitudes usually above 6 km or at low temperatures, also indicating fair weather;made of ice crystals
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cumulus clouds
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clouds that look like cotton that form at less than 2 km above the ground but may exend upward as much as 18 km; the shorter the cloud the better weather and the huge clouds may indicate a thunderstand
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Stratus clouds
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Clouds that form is flat layers that cover practically the whole sky and are a dull gray color
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