Green Science - Enviro Battery
List Price R 149
Discovery Miles 1 050
Eligible for Cash on Delivery. Learn more
Free Exchanges & Returns for 30 days. Learn more
Your enviro battery works by immersing a pair (or pairs) of connected zinc and copper plates into an aqueous medium such as a potato, mud, water, or a piece of fruit. The zinc plate is the negative electrode; the copper plate is the positive electrode. When the metals are immersed into the electrolyte, a chemical reaction takes place. The acid in the electrolyte breaks down the atomic structure of the copper and zinc, causing individual electrons to be released. Zinc is a more reactive metal than copper in this chemical process. It generates electrons faster than copper in this chemical process. The excess electrons flow from the zinc plate to the copper plate. This flow of the electrons from a reactive metal to a less reactive metal forms a small current which is strong enough to power a small light bulb, a small watch or a sound chip.
- Green Science - Enviro Battery
- South Africa
- 3 - 6 Years
Samantha, South Africa. 30 April 2016
My 8-year old had tons of fun doing the experiments, we just found that the light bulb was very faint, you could really only see the light on in pitch darkness.
L, South Africa. 26 January 2016
Interesting for 8 years up.