8 - 15 years
Why does a saline solution conduct electricity? How does a motor work? How does a light bulb turn on? What is the difference between a series circuit and a parallel circuit? How does an alarm work? How do you make a siren? With 22 easy circuits and no soldering required, this is an easy way to discover electricity. Instruction sheet in 6 languages. Requires 4 x AA batteries, not included.