Page 12 - ..Science E-book Prim.5 2024-2025 1st term part2_Neat
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Thermal energy is an energy in the form of heat.

            We use it every day in cooking, warming.

Each matter has thermal energy and when this energy

            changes, it effects the matter state.

            The matter can be changed by taking (gaining) or

releasing (losing) energy. (by increasing or decreasing its

When particles gain       temperature)  When particles lose
thermal or light energy,                thermal energy,
They move and spin                      They move and spin
faster,                                 slower,
Their speed increase,                   Their speed decrease,
The matter becomes
                                             The matter
        warmer.
                                          becomes cooler.

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