Enviro Battery Green Science

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 a sound buzzer. Includes experiment guide for making a coin battery, a fork battery, a potato buzz wire game, and more. Caution: High voltage inspiration! Contains 3 zinc plates, 3 copper plates, 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