Heat ____ from the Sun causes water to turn from a liquid to a gas. This process is called ____. Water as a gas is called ____. This water vapour rises. The higher you go the colder it gets until the water vapour will eventually get cold enough to turn back into liquid water. This process is called ____. This is how clouds form. If this happens at ground level, we get mist or fog. Clouds are made of tiny ____ of water that are too small to fall as rain. These bump into each other and combine to give bigger drops which fall as ____. If it is cold enough, ice forms instead and we get snow. The process of water returning to the ground from the air as rain, dew, snow or hail is called ____. This water then flows off the land towards rivers and into the sea in a process called ____.

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