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Electricity and circuits
Circuits, switches, conductors and insulators, staying safe, and Ohm's law. Three ages, each with a text, an experiment, a game, a quiz, a printable worksheet and a teacher sheet.
Ages 6–7Electricity: making a bulb light upWhat electricity does, how a circuit works, and how to stay safe. With a make-a-bulb-glow experiment using a battery.Ages 10–11Circuits, conductors and insulatorsWhat current is, why circuits must be complete, conductors and insulators, series and parallel circuits, and safety. With a conductor-tester experiment.Ages 15–16Current, voltage, resistance and powerCurrent as flow of charge, Ohm's law, series and parallel resistance, electrical power and energy in kWh. With a resistance-of-a-wire investigation.