TAK1133
Features:* Metal-air electrochemical cell type of battery that is widely used in small scale devices
* Ideal for demonstrating battery technology
* Does not use any harmful chemicals
* Uses only magnesium plates, salt water, and the oxygen in the air to generate electricity
* Experiment with different concentrations of salt to see how long
* Learn about electrochemistry and battery technology
* One metal plate lasts as much as six times longer than a regular AA battery
Colour/Finish:* Full-colour, 64-page experiment manual.91 building pieces