Question

What object did Ben Franklin attach to the end of a kite string to prove that lightning is electricity?

Answer 1

Ben Franklin attached a key to the end of a kite string to prove that lightning is electricity. He flew the kite during a thunderstorm and the key was struck by lightning, proving that lightning is indeed electricity.

Answer 2

Benjamin Franklin attached a metal key to the end of his kite string to prove that lightning is electricity. During a thunderstorm, he flew the kite and observed electrical sparks jumping from the key to his hand, proving that lightning was a form of electrical energy. This experiment helped to establish the basis of electrical theory and led to the invention of lightning rods for protecting buildings from lightning strikes.