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Grade 5 Science 2/2
Cycles of Matter
Question | Answer |
---|---|
water cycle | continuous process by which wayer moves from earth's surface to the atmosphere and back |
evaporation | the process by which molecules of liquid water absorb energy and change into a gas |
condensation | the process by which a gas changes to a liquid |
precipitation | heavy drops of water from condensed water vapor in the clouds, falls to earth as rain, snow, sleet, or hail |
nitrogen fixation | the process of changing free nitrogen into a usable form of nitrogen, performed by certain bacteria |