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Have you ever put a spoon into hot chocolate? What happened to the spoon? If it was metal, it probably got as hot as the hot chocolate. Have you ever put butter onto pancakes? What happens? Did the butter melt? If it did, this is because the energy moved from the hot pancakes to the butter, and made the particles in the butter move faster. This made them melt. The energy transferred from the pancakes to the butter. When heat transfers, this is called conduction. Conduction means it travels through liquids and solids. Heat can travel in other ways, too. These ways are radiation and convection. Convection means it travels through liquids and gases. Radiation means that it travels through gases. Sometimes heat moves without touching anything. This is called radiation. When we feel the sun's warmth, we are feeling radiation. The things that heat travels through are called conductors. Heat doesn’t travel well through wood, water, and air. It does travel well through metal and iron. If you pick up a hot metal spoon, you might burn your hand! If you pick up a plastic or wooden spoon, it won’t be nearly as hot. To learn more about heat transfer, look here: http://hyperphysics.phy-astr.gsu.edu/HBASE/thermo/heatra.html
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