Chemical energy, Energy stored inside food and batteries, Generator, Device converting kinetic to electrical energy, Biofuels, Fuels from living organisms that can be replanted, Fuel, Substance producing thermal energy when burned, Global warming, Rising Earth temperature from increased carbon dioxide, Energy chain, Way to describe energy flow and conversions, Oil, Liquid fossil fuel from ancient sea organisms, Wasted energy, Energy not helping a device’s main function, Deforestation, Cutting down trees faster than regrowth, Battery, Energy source in some remote-controlled toys, Energy Chain, Diagram showing the flow of energy, Carbon Dioxide, Gas that causes global warming, Wood, Oldest biofuel still used, Electric Fan, Converts electrical energy into kinetic energy, Electric Bulb, Converts electrical energy into light and thermal energy.

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