Previous learning has taught the children a circuit always starts with a battery (a cell) . A flow of electricity moves from the positive pole to the negative pole of the battery. The flow is pushed by the battery, through the wires to the other components in the circuit. This makes a complete electrical circuit.
The first challenge was to create a simple circuit…
We made a simple circuit using wires, a battery and a bulb…
Then the all important question..
How can we increase the brightness of the bulb ?
Time to put your scientific heads on!!! Lots of discussion; lots of hypothising, ideas and theories began to develop.Obviously, as every scientist knows, these ideas and theories need to be tested .
Then the light bulb moment !!!
By increasing the voltage we also increased the brightness of the bulb….
In the original circuit we had a total of 3V…we increased the voltage to 6V. We discovered the greater the voltage the brighter the bulb.
The greater the voltage the brighter the bulb
Then an extra challenge.
How can we make a switch out of foil and cardboard, which will open and close so we are able to switch the bulb on and off?
We created a switch , which would open and close. We knew foil would conduct electricity. We connected the wires to each end of the foil to create a complete circuit.
Well done girls!!!











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