Today year 4 ended their half term with a bang, luckily not a real one.

Today we completed our journey of scientific enquiry into the world of electricity. The children were asked to problem solve using their knowledge of circuits and electrical flow to speed up and slow down a motor controlling a fan.

Some groups were able to work out that the circuit needed more volts to speed up the fan and were able to build circuits including two or more batteries. A number of the class were able to slow down the motor by reducing the amount of voltage by reducing the number of batteries. They were able to further this by adding more items which used more more power and therefore shared the voltage. One group managed to go further with their problem solving by adding a number of wires, where we discussed that this created resistance therefore slowing down the speed of the fan further.