This Science quiz is called 'Circuits and Switches' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.
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Electrical products work by using circuits and switches. Circuits allow electricity to flow through - and so power - bulbs, motors and buzzers. Switches are used to control circuits. They can break a circuit - and so switch bulbs, motors and buzzers off - or complete a circuit - and so switch them on again. Many products work by using electricity. How many items in your house work by using electricity? Probably more than you think. Count them and see.
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Switches can turn power on and off. Think of the light switches at home
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Electrical wires have metal inside them. Most circuits use wires but any metal will do
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Batteries can store energy and release it as electricity
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Electricity passes through a bulb and causes it to glow
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Can you think of any other types of switches?
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Electricity does not pass through an insulating material such as rubber, therefore when you touch the product you do not hurt yourself
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When a switch is turned off the circuit is broken so electricity cannot flow through and the bulb gets no power
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When a switch is turned on the circuit is complete so electricity can flow through and the buzzer gets some power
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Motors are found inside remote control cars for example
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The more power, the brighter the bulb
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