• UAE
• Grade 5
• Science
• Physics

Know that energy can be transferred as light, sound, heat, electrical and movement energy.

Four stroke engine #2

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Loudspeaker

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Hydroelectric plant

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Transportation and Energy

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Flashlight

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Electric generator

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Light Bulb

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Steam engine

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Galvanic cell

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Loudspeaker: an invention more than a century old

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History of Transportation

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Fuel cell

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