Enviro Battery

Enviro Battery - The most unique and non-polluting energy sources you can find on Earth - the potato

Enviro Battery - The most unique and non-polluting energy sources you can find on Earth - the potato, salt water and mud. Be amazed at how they light up a bulb or sound a buzzer. Includes an experiment guide for making a coin battery, fork battery, potato buzz wire game, and more. Age 8 and above.

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