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2 
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A form of energy, such as heat waves, visible light, and X-rays, that can radiate through empty space. 
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3 
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The amount of heat energy needed to raise the temperature of one gram of pure water one Celsius degree 
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4 
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A body of arid air that is low in humidly because it formed over a land area. 
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5 
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A large body of air that has relatively uniform conditions of temperature and pressure.   
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6 
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A body of air that is relatively moist because it formed over an ocean. 
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7 
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Latent potential energy absorbed when a liquid vaporizes and released when a gas condenses. 
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8 
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A high-pressure system that usually brings cool, clear weather as its winds rotate clockwise and away from the center. 
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9 
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A weather system in which the atmospheric pressure is lower than surrounding areas. 
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10 
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Latent potential energy absorbed when a solid melts and released when a liquid freezes. 
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11 
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A measure of the average vibrational kinetic energy of a substance. 
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