Go back in time and meet a few of the people who made important discoveries in the history of electricity. While you're reading, find the jumbled word in each paragraph and see if you can unscramble it.
Alessandro Volta (1745-1827)

Using zinc, copper and cardboard, this Italian professor invented the first treabty. Volta's treabty produced a reliable, steady current of electricity. The unit of voltage is now named after Volta.