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Earth Science Unit 7

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Across
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weight or force upon something
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the sub-layer of the thermosphere where the atmosphere blends into space
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waste substances not ordinarily found in the atmosphere that affect Earth's natural cycles
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the layer of the atmosphere just above the stratosphere; burns up most meteors
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height above the earth's surface
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mass of stone or metal traveling through space
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an electrically charged atom
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wasted, unburned fuel given off as a gas
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process by which plants use chlorophyll and energy from sunlight to manufacture food from carbon dioxide
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ability of a material to reflect solar radiation
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process of heat transfer by the circulation or movement of a liquid or a gas
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layer of the atmosphere above the mesosphere where temperatures are the highest in the atmosphere
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the process by which oxygen combines with food to release energy and carbon dioxide
Down
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instrument used to measure air pressure
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transfer of heat or energy through rays of various wavelengths
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layer of the atmosphere nearest the earth where most weather changes occur
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moisture in the air
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layer of the atmosphere just above the troposphere where the temperature remains fairly constant
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a region in the upper stratosphere where ozone is concentrated
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mass of stone or metal that has passed through the atmosphere and struck the earth's surface
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the transfer of heat between two stationary entities
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single-celled photosynthetic bacteria
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a molecule composed of three oxygen atoms; absorbs UV radiation