How to make a 'Hydrolic Dam' (Activity for class 7)
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Most dams are built to control river flow, improve navigation, and regulate flooding,some dams are built to produce hydroelectric power.Hydroelectric power is produced as water passes through a dam, and into a river below. The more water that passes through a dam, the more energy is produced. Once a dam is built, an artificial man-made lake is created behind the dam.Electricity is produced by a device called a turbine. Turbines contain metal coils surrounded by magnets. When the magnets spin over the metal coils, electricity is produced. Turbines are located inside dams. The falling water spins the magnets.
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