Here is Sarah's explanantion on electricity and electrical circuits.
What is Electricity?
Electricity is a source of energy that can be generated by
many things such as batteries, the sun and wind power. Electricity is used to
power many things such as lights, radios, cars, trains, hairdryers and much more.
These items all contain an electrical circuit. An electrical circuit is a path
through which an electrical current flows. You can build a simple circuit to
see the flow of electricity in action.
What do you need to build a circuit?
To build a circuit you will need wires, batteries, crocodile
clips and a bulb or any other receiver.
How do you build a circuit?
First, gather the necessary materials and check each part
carefully because any damage might result in an electric shock. Next, place the
batteries into the battery pack. Make sure they are the right way round in
relation to polarity (+, -) so that the electricity will flow through the
circuit. After that, attach one crocodile clip to each of the metal circles on
the battery pack. A few moments later, attach the other end of the crocodile
clip to the metal screw of the bulb holder. Then, repeat with the other wire so
that the two wires lead from the battery to the bulb holder. Finally, you will have
formed a circuit and as a result electricity will flow through the circuit and
light the bulb.
Well Done Sarah. Excellent explanation of electricity and circuits.
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