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Conduction, Convection, Radiation (grade 3)
Things can warm up or cool down (heat transfer) in three ways: conduction, convection, and radiation. Here is a brief review of which is which!
Conduction: heat transfers through touch, like melting butter in a pan.
Convection: transfers heat through air or liquid currents, like the heat from a blow dryer, or like the heat that comes out of the air vents in a car to warm you up.
Radiation is heat transfer through invisible waves, like the sun warming us up.
Can you think of any examples of heat transfer?
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