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 Conduction happens when two objects touch its as they move from place to place like when you touch a rock you make the rock warm from the heat in your hand Convection is the eat that you emit then like it travels through the air until it hits something else it's not radiation this is heat that you can feel the radiation you cannot in the air the only time you feel it is when the radiation hits you convected heat you can feel in the air like also ina fire feel above the fire and you will feel heat in the air.