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Science coursework Aim To find out which makes the best insulator. Materials to be tested Bubble wrap Wool Carpet underlay Polystyrene Curtain material Scientific knowledge Conduction Conduction transferred between solids through heat, thermal energy is passed through particles. Metal is an excellent conductor of heat as the particles in the metal are very close together. Solids conduct heat by vibration of one particle being passed on to the next when the to bump together and the process continues. It is the most important type of heat transfer in solids. Convection Thermal energy is transferred through particles in liquids and glasses, the particles do not have fixed positions they carry energy wherever they flow. As the heat is trapped and cannot escape it circulates. Air is heated and it rises when it cools it descends Radiation In radiation, which is known as infa-red as well, this is given off hot objects and is absorbed by black surfaces but reflected by shin or white surfaces....

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