Does the Colour of a Liquid Effect How Fast it Cools? :: essays research papers

Does the Colour of a Liquid Effect How Fast it Cools?I am trying to find out if the colour of a quiet rigs how quickly it cools down.Method1.     First I took five shew tubes and modify each one with 5ml of black, fat, green, red and clearly colouring (for the clear colouring I simply used pee.)2.     I then filled each of the running tubes with 25ml of boiling (of course whilst wearing safety goggles.) water and waited for the temperature to f in all to 50C and then measured the temperature of the water, using thermometers, both 30 seconds for three minutes.3.     I recorded our results and repeated the experiment to mark the test fairer.Diagram My diagram squeeze out be found in the plastic wallet this was handed in with.Equipment     5 standard test tubes.     5 thermometers.     Four colour dyes, black, blue, green and red.     A stop watch.     A kettle.PredictionI think that the colour of the liquid will effect how quickly it cools down because I know that dark matt surfaces are better at absorbing radiation. accordingly, according to my theory, the darker dyes such as the black, blue and green will cool slower than the lighter ones.ResultsThese are my middling results for both sets of recordings get into tablesGreen     Time      temp (C)000     50030     49100     48130     47200     47230     46 crimson     Time     Temp (C)000     50030     45100     43130     42200     41230     40Blue     Time     Temp (C)000  &nbs p  50030     47100     44130     42200     41230     40Black     Time     Temp (C)000     50030     47100     44130     42200     41230     39Clear     Time     Temp (C)000     50030     48100     47130     45200     44230     37I then put these results into a graph which you can find in the plastic wallet this was handed in with.I then worked out the total temperature loss for each colour and put them into this table     Red     Green     Blue     Black     Clear number Temperature Loss in C     10     4     10     11     13I then put the results into this bar chart resultantMy results take care very strange and almost contradict my prediction. All the results seem quite similar, except the green dye, which, of course, could simply be an anomalous result. Therefore my conclusion is that the colour of a liquid makes no difference to how quickly it cools down.EvaluationI understand that my experiment was not at all completely accurate. To be so I would need to do it in a controlled, stable environment, but this was not available to me.