Tin Can Calculator

Create electricity using recycled soda cans and pencils Make your own batteries Learn the science of creating electricity in a fun hands on experiment Part of the Green Science Series from 4M For ages 8 and up Explore the science of electricity with the Tin Can Calculator. Part of the Green Science series from 4M. Recycle tin cans and pencils to generate electricity which powers a calculator. The Tin Can Calculator will be a cool classroom or home gadget. Fun and educational. Caution: High voltage. Adult supervision required. .