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Aim: To find out how huddling, in penguins, affects heat loss and temperature.
Member rating: No Rating | Words: | Submitted: Fri Aug 26 2005
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Aim: To find out how huddling, in penguins, affects heat loss and temperature. Apparatus: 8 test-tubes or boiling tubes stop clock 2 thermometers (-10 to 110 °C) beaker to hold tubes test-tube rack measuring cylinder container of hot water Method: 1) Fill up one tube with cold water from the tap and use the measuring cylinder to work out its volume. Record this value, then tip the cold water away. 2) As accurately as you can, measure half the volume you have determined above of hot water into each of the 8 tubes. 3) Put one tube by itself, and the remaining 7 tubes into a bundle, held by the band. 4) Take the temperature of the water in the single test-tube, and write it down. 5) Take the temperature of the water in the centre test-tube of the bundle, and write it down. 6) Repeat stages 4 and 5 every 3 minutes for, say 24 minutes. 7) Record results in a tabular...
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