• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Comparing Heat Loss Between A Single Test Tube and Test Tubes in a Huddle.

Extracts from this document...


Comparing Heat Loss Between A Single Test Tube and Test Tubes in a Huddle Aim I aim to prove whether heat loss is reduced by huddling test tubes, as opposed to the heat loss of a single test tube, which is more exposed to the air. Background Information Controls Variables The number of test tubes. Time taken to carry out the experiment. The number of thermometers. Starting temperature. Amount of water added to each test tube. Final temperature. 15 readings, which are repeated for an average. The number of elastic bands required supporting the huddle. The number of beakers and stands required supporting the test tubes. Prediction I predict that the single test tube is more exothermic than the test tubes in the huddle. This is because, by huddling, a smaller surface area of the test tubes is exposed to the air. ...read more.


Next, my teacher poured boiling water to the brim of each test tube. At this point, I started the stop-clock, reading each thermometer every minute for 15 minutes and recording the temperature in a results table. After documenting the final result, I refreshed the water in each test tube and repeated the experiment to record my second readings. Conclusion My results show that the test tubes in a huddle lost 24.5 C and the single test tube lost 28 C. Thus the test tubes in a huddle restored 3.5 C more than the single test tube. As a result the test concurs with my prediction, that the single test tube is more exothermic than the test tubes in the huddle. I also configured results to show the percentage change of the single test tube and the test tubes in a huddle. ...read more.


no picking up in order to read the temperature. This is so the temperature is not affected. To improve my investigation, I would accomplish the following: * By repeating the experiment more than twice, I can get more readings and thus improve my average results. This makes the experiment more accurate. * I can begin the experiment at higher temperatures. This will give me more varied results. * Beginning the experiment at higher temperatures will also enable me to expand the time. Providing me with more results. * By carrying out the same experiment in different temperatures, I can resolve how much the results are affected and make comparisons. * I could also cover the test tubes in different materials like cotton and foil to resolve whether they affect the temperature. * I can differ the water level in the single test tube compared to that of the test tubes in a huddle to determine whether the amount of water affects the results. Christopher Smith 5/7/2007 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Green Plants as Organisms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Green Plants as Organisms essays

  1. Marked by a teacher

    Investigate the effect of huddling on heat loss.

    5 star(s)

    Safety note: be mindful of the hot water. Measurements of the circumference of the huddle were also taken, to measure the surface area exposed. The 1-test tube (solo penguin) experiment Apparatus: 1 test tube 1 thermometer A stopwatch A test tube rack Hot water Materials to record data Method 1.

  2. Marked by a teacher

    To measure heat loss in two test tubes which represent bodies, one which sweats ...

    3 star(s)

    After the water had boiled I measured out 25cm3 of water in two measuring cylinders and then pouring into each boiling tube. 4. I then began taking readings for 20 minutes, every minute and recorded them. 5. My preliminary experiment wasn't as successful as possible because the starting temperatures of each boiling tube were not the same.

  1. Investigating heat loss from huddling penguins.

    This is because some of their heat will be transferred to each other and some into the environment. Also, penguins have small feathers which they "fluff up". By doing this, they trap air which acts as an insulator - keeping heat in.

  2. Heat loss in Emperor Penguins.

    However, beakers in the outside layer are touching only 3 others. I predict that because of this, beakers on the inside layer(s) will all cool at the same rate, and beakers on the outside layer, will all cool faster. Pre-Test Before my final experiment, I conducted a pre-test, to ensure that my method was sound.

  1. An Investigation into Water Loss from Plants.

    Vaseline - 5.984% Vaseline on top - 4.27% Vaseline on bottom - 2.376% Vaseline on both - 2.144% Microscope Findings Under a microscope at x100 magnification it was found that the view had a diameter of 0.57mm therefore the area of the view was 0.255mm�.

  2. Investigating Heat Loss in Model Animals

    These were often due to a lack of either equipment or accuracy. 1. I discovered that it was very difficult to obtain any water that was actually at 100 �C, and then to fill all the test tubes separately without there being a large drop in water temperature whilst waiting for water to re-boil.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work