How Different Coloured Cans Radiate Heat The Best

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Aim: To test and compare how different coloured cans radiate heat. Hypothesise: The hypothesis for this experiment is that the black can will radiate heat the best, followed by the silver can then lastly the white can. Independent Variable: Colour of aluminium cans Dependent Variable: Temperature of water surrounding can after a designated time. Control Variables (at least 3 plus how they are controlled) Time the water is kept in the cans, volume of water, size and material of cans Materials (list): - One silver aluminium can (375ml) - One black aluminium can (375ml) - One white aluminium can (375ml) - Three ice cream tubs (same size) - Three thermometer - Boiling water - One stopwatch - Apron - Safety glasses - Measuring beaker…show more content…
The initial starting temperature for the interior of all three cans was 80 degrees. Both the black and white can’s exterior temperature of the water measured at 18 degrees but the silver can was at 19 degrees. After two minutes the silver can’s temperature for the exterior water measured 23 degrees, the black can at 20 degrees and the white can at 23 degrees. After four minutes into the experiment, the black can’s exterior temperature had risen to 22 degrees whereas the white can’s exterior temperature had risen by 3 degrees, now at 26 degrees Celsius. The white can had risen by 2 degrees, now measuring at 25 degrees. At 6 minutes into the experiment, the black can was still the least efficient at radiating heat, measuring at 24 degrees (exterior water temp.) The exterior temperature for the white can had risen to 26.5 degrees Celsius, whereas the silver can was already at 27 degrees Celsius. Finally at 10 minutes, the final temperatures measured at 29 degrees Celsius for the exterior of the silver can, 25 degrees

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