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Product code: 2341208
GREEN-SCIENCE ENVIRO BATTERY.
The most unique and non polluting energy source you can find on earth- the potato, salt water and mud.
Be amazed at how they light up a bulb or sound buzzer.
Includes experiment guide for making a coin battery, fork battery, potato buzz wiregame, and more.
Caution: High voltage inspiration!
Contains 3 zinc plates, 3 copper pates, connection wires, 3 plastic cups, a light tower, a LED lamp with connection wire, a sound chip with connection wire, an experiment record sheet, adhesive tape and detailed instructions.