battery - Students, Britannica Kids

The devices called batteries convert chemical energy to electrical energy. They produce electricity more efficiently than other energy-conversion devices, such as…

electricity - Students, Britannica Kids

battery - Students, Britannica Kids

energy conversion devices - Students, Britannica Kids

electricity - Students, Britannica Kids

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robot - Students, Britannica Kids

Encyclopedia Britannica Kids: Around the World Sights and Sounds

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battery - Students, Britannica Kids

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