This Science quiz is called 'Electricity' 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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We need electricity to help us live. Most of our machines contain circuits and need at least some electricity. Computers, phones, televisions, cars, trains, airplanes - they all use electricity. Machines that use very small amounts of electricity are called electronic machines. But the whole country uses massive amounts of electricity. Most of this electricity is produced in power stations. It is carried round the country in metal wires, or conductors. These are fixed to great big, tall utility poles.
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Insulators are materials that will NOT let electricity go through them
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Have you ever built a circuit? A metal paper-clip or a coin will let the electricity go round the circuit
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Most switches are ‘on’ when they are down
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All computers need a little bit of electricity to make them work
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Electricity is needed to make the pictures and the sound
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Lots of machines use an electric motor to make them work
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Never go near electricity utility poles - the electricity in the wires is very dangerous
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Lots of things use batteries, from cell phones to electric toys
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The bulb uses electricity and turns it into light energy
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The buzzer uses electricity and turns it into sound energy
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