How Batteries Work

Galvani believed in animal electricity, but Volta disagreed and said the electricity came from _________.

• The animals nerves

• The metal tools

• The light shined onto the animal

Oxidation is the

• loss of electrons

• grain of protons

Why does a battery "die"? (don't guess, re-watch as this is an important concept) 

• the metal reduces

• it runs out of metal to oxidize

• it gets over heated

How does a rechargeable battery replenish the power in the cell?

• it reverses the reduction and oxidation process

• charges from the house circuit replace those that are gone

• it replaces the electrons with new ones