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What is a Circuit?
A circuit is like a path or road for electricity to travel. Imagine a toy car
track where the car can only move if the track is connected properly. In
the same way, electricity needs a complete path to flow and make things
like lights, toys, or robots work.
In a Circuit
The Circuit has the following components:
• Wires carry the electricity, like roads for cars.
• Batteries give power, just like fuel for a car.
• Switches turn things on or off, like a door that
opens or closes the road.
When everything is connected the right way, the electricity flows and the
toy, light, or robot starts to work. If there is a break in the circuit, just
like if part of the toy car track is missing, nothing will work.
Conductor and Insulator
One day, Mia was helping her
mom cook in the kitchen when
she accidentally touched a
metal spoon that had been lying
near the stove. It was really
hot. Her mom quickly gave her
a towel to hold the spoon, and
Mia felt better. She asked,
“Why was the metal spoon hot but not the towel?” Her mom smiled and
said, “Let me tell you about conductors and insulators.”
Define Conductors and Insulators
A conductor is something that allows electricity (or heat) to pass through
it easily, like the metal spoon. Metals are great conductors, which is why
they get hot or can carry electricity.
Understanding the Circuits 15
