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| a mixture of gases that surrounds a planet or moon |
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| the measure of the force with which air molecules push on a surface |
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| an instrument that measures atmospheric pressure |
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| the height of an object above a reference point, such as sea level or the Earth's surface |
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| the movement of matter due to differences in density that are caused by temperature variations; can result in the transfer of energy as heat |
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| the movement of air caused by differences in air pressure |
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| the curving of the path of a moving object from an otherwise straight path due to the Earth's rotation |
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| the amount of water vapor in the air |
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| the ratio of the amount of water vapor in the air to the amount of water vapor needed to reach saturation at a given temperature |
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| an instrument that is used to measure the moisture content of the atmosphere |
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| an instrument that uses human hair to measure relative humidity; human hair stretches as humidity increases |
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| the change of state from a gas to a liquid |
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| he change of state from a liquid to a gas |
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| at constant pressure and water vapor content, the temperature at which the rate of condensation equals the rate of evaporation |
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| a collection of small water droplets or ice crystals suspended in the air, which forms when the air is cooled and condensation occurs |
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| a solid particle in the atmosphere that provides the surface on which water vapor condenses |
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| water vapor that has condensed very near the surface of Earth because air close to the ground has cooled |
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| a low-level, billowy cloud that commonly has a top that resembles cotton balls and a dark bottom |
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| a gray cloud that has a flat, uniform base and that commonly forms at very low altitudes |
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| any form of water that falls to Earth's surface from the clouds; includes rain, snow, sleet, and hail |
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| a type of precipitation made up of ice pellets |
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a type of precipitation in the form of lumps of ice
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an instrument used to measure wind speed |
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an instrument used to determine the direction of the wind
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a cone-shaped piece of fabric used to indicate the direction of the wind |
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a local rise in sea level near the shore that is caused by strong winds from a storm, such as those from a hurricane |
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Definition
radio detection and ranging, a system that uses reflected radio waves to determine the velocity and location of objects |
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