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Evaporation- Heat energy given off by the sun causes water on the surface to change into a gas (vapor) ... Condensation- Water vapor changes back to a liquid in cool conditions...
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First...
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The water cycle can be organized into these four main steps. Since the Earth only has a certain amount of water and cannot create more, the water that we do have must be used over and over and over again in a system we call the water cycle.
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The Water Cycle ... Water on earth moves in a continuous cycle. This is called THE WATER CYCLE. There is about the same amount of water on earth now that there was when the dinosaurs roamed our planet ... Here are some activities to learn about the water cycle and the water cycle in the rain forest.
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Water cycle steps, problems, and what you can do. ... The Water Cycle describes how water in the Earth's ecosystem is in continual motion, moving from place to place and taking different forms. Water may be solid ice, liquid water, or gaseous vapor.
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