A Beginner's Guide to Circuits

1THE STEADY-HAND GAME

THIS CIRCUIT WILL SOUND A BUZZER IF YOU LET THE RING TOUCH THE WIRE.

THE CIRCUIT DIAGRAM

THE PARTS LIST

PART	DESCRIPTION
Buzzer	Buzzer that works with 9 V battery
Steel wire	Bare and stiff wire, like a clothes hanger
Metal ring	Bare metal ring, like a soda can ring
An old pen	Old pen for mounting the metal ring
Tape	Electrical tape is best, but any tape should work

ABOUT THE CIRCUIT

You might have grown up playing a game called Operation, in which you play a surgeon who uses tweezers to remove silly ailments ...