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We are going to talk about heat.

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What is heat?

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Heat is a form of energy that changes from a hotter object to a colder one.

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There are three things we can explain about heat.

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Sources of heat, changing matter and temperature.

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There are two groups, natural and artificial.

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Natural. Heat can come from the sun and lava.

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Artificial. Heat comes from a heater, a radiator, wood fire, and light wood.

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Changing matter.

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The matter changes according to its temperature.

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When it absorbs heat, it gets warmer and expands.

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When it emits heat, it cools down and contracts.

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There are types of thermometer, analogical and digital.

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It is an apparatus for measuring the temperature.

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Bye!