eW/FS/WE/001 The water cycle The sun provides light, so that we can see. The sun provides heat, so that we can be warm. The sun is a source of energy. The sun shines every day, even when we cannot see it. Some days the clouds gather between us and the sun, so we cannot see the sun. During the day the sun heats the earth. The heat of the sun makes the air around the earth warmer and drier. The water on the earth is evaporated by the sun’s heat. www.ewisa.co.za Contact: ewisa@wamsys.co.za or ewisa@wisa.co.za www.ewater.co.za www.waterinfo.co.za www.waterinformation.co.za AA1i