The House Alarm
Materials:
Scissors, Cellotape, Insulating tape, Wire, Paint, Buzzer, Batteries, Split pins, and Cardboard.
Method:
First we made a house out of cardboard, and painted it yellow with a white roof. It wasn’t much of a success so Katerina made another one. We painted the second house purple, with a green roof and door.
Then we had to make sure the circuit worked. We joined two wires to the battery, one on each side. After that we joined the wires from the battery to the side of the buzzer. It worked. Now all it needed was a switch. We attached the wires to the battery, one to the buzzer and one to the switch. We attached another wire to the buzzer and one to the switch one split pin on the door and another on the wall so that they touched when the door opened.
Hey presto !!!!. Your circuit is finished and the house alarm works!!
By D, K and A