Natural Sciences Grade 7

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Presentation transcript:

Natural Sciences Grade 7 Term 3: Energy and Change Heat transfer

Heating and the transfer of energy Topic 3 Heat Transfer Heating and the transfer of energy Natural Sciences - Grade 7

Natural Sciences - Grade 7 The process of heating Heat energy can be transferred from: - an object that is warmer [hotter] to another object that is colder [cooler]. - the one warmer [hotter] end of an object to its colder [cooler] end. We say that heat has been transferred from the warmer object to the colder object. Natural Sciences - Grade 7

How long does the heating last? The object that is hot, cools down. The object that is cool, heats up. This process will continue until both objects have the same temperature. Natural Sciences - Grade 7

The different ways in which heat energy is transferred Heat energy can be transferred in the following ways: Conduction 2. Convection 3. Radiation Natural Sciences - Grade 7