lemon battery

Acidic fruit power

A lemon battery is a simple electrochemical cell made by inserting two different metal electrodes—typically zinc and copper—into a lemon.

The citric acid acts as an electrolyte, allowing a small electric current to flow between the metals.

It's a classic science fair demonstration of how batteries work: We made a lemon battery that powered a tiny LED.

Related

zinc · science fair · electricity · acidic · juice · wire · current · experiment · LED · fruit · chemical reaction · electrical circuit · anode · cathode · electrolyte · sour · yellow · homemade

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Opposites
power source practicality

lemon batterylithium-ion battery

Rechargeable cell using alkali metal

hydroelectric dam · nuclear reactor · car battery · AA battery · fuel cell

technological sophistication

lemon batterynuclear power plant

Fission-based electricity facility

particle accelerator · fusion reactor · lithium-ion battery · supercomputer · solid-state battery

energy scale

lemon batterynuclear power station

Fission-driven electricity facility

hydroelectric dam · natural gas plant · wind farm · Three Gorges Dam · Hoover Dam

Family

lemon, battery, lemons, lemony, lemonade, batteries, batter, battering, battered

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Positive · Everyday, not technical · Rated G