Battery Science and Chemical Reactions

What did Luigi Galvani observe when he touched a frog's leg with a metal instrument?

• The frog's leg changed color.

• The frog's leg muscles twitched.

• The frog's leg became cold.

• The frog's leg started to glow.

What materials did Alessandro Volta use to create his first battery?

• Gold, silver, and water

• Iron, aluminum, and oil

• Zinc, copper, and a salt water solution

• Lead, nickel, and acid

What two chemical processes are involved in how a battery produces electricity?

• Evaporation and condensation

• Melting and freezing

• Oxidation and reduction

• Dissolving and precipitation

Why do rechargeable batteries eventually stop working, even after being charged many times?

• The battery's outer casing wears out.

• The chemical solution inside dries up completely.

• The metal surfaces develop imperfections that prevent proper chemical reactions.

• The battery overheats and melts its internal components.