Equipment:
Crepe
paper, cardboard, a buzzer, 7 pieces of wire, a battery holder, four batteries,
insulating tape, a sheet of paper
with questions and answers on it.
Method:
We
stuck the sheet of paper with the sums on it to a piece of cardboard. We then made holes, one opposite each question and one
opposite each answer with a screwdriver. We
put one end of each wire through the hole at each question and the other end
through the hole at the answer. We
attached one end of the battery to the buzzer and the other end to a paper clip.
We attached the other side of the buzzer to a wire with a paper clip.
The
buzzer will go off when you get the question right and complete the circuit.
J, C and J