• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4

# To investigate the effect of &amp;#145;huddling&amp;#146; on temperature loss in a model animal

Extracts from this document...

Introduction

Tony Burge 04/11/2001 Science 1 Investigation Task To investigate the effect of 'huddling' on temperature loss in a model animal Planning Penguins and other animals in cold conditions often huddle together for warmth. I am going to do an investigation to see if this method is effective. I will do this by testing the temperature of water from a test tube every minute for ten minutes and then test the temperature of the water from two test tubes in a huddle of seven, one from the middle and one from the edge. I will make the test is fair by measuring out 10cm of water in each of the test tubes by using a beaker. I will also make sure, by using a thermometer, that it's at an equal temperature at the start of the experiment. ...read more.

Middle

* The heat radiation from the test tubes in the 'huddle' will keep the temperature from dropping as fast as the lone test tube will. Results Time (minutes) Single Test tube c Inside Test tube c Outside Test tube c 0 61 61 63 1 56 57 61 2 54 58 59 3 52 57 56 4 49 56 56 5 48 55 55 6 47 53 53 7 45 51 50 8 40 50 49 9 39 49 48 10 38 48 48 Time (Minutes) Single Test tube c Inside Test tube c Outside Test tube c 0 66 65 65 1 60 64 64 2 58 63 63 3 56 62 60 4 55 61 59 5 52 60 59 6 52 59 58 7 49 57 57 8 48 56 56 9 47 54 53 10 45 52 49 The prediction, which I made before the experiment, proved to be correct in both the experiments that I carried out. ...read more.

Conclusion

Evaluation I felt that my results were not completely reliable due to lack of equipment. I had planned on using a Bunsen Burner to heat my water to the correct temperature but had to use a kettle, which made it hard to get an equal starting temperature. Because of this I based my conclusion for experiment 1 on how many degrees Celsius the temperature would decrease per minute. After repeating the experiment with an equal starting temperature I feel that my results are conclusive. Also, in experiment 1, there is a surprising rise in temperature that I have circled in yellow on my graph. This is probably due to my thermometer touching the side of the glass test tube. This doesn't have an effect on my final conclusion as I did a second experiment. I found that after doing my second experiment the results followed a very similar pattern and are therefore conclusive. ...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

# Related GCSE Green Plants as Organisms essays

1. ## Investigate the effect of huddling on heat loss.

5 star(s)

identical test tubes 2 rubber bands 2 thermometers A stopwatch A test tube rack Hot water (from a tap) Materials to record data Method: In this experiment the temperatures of different huddles were measured. A test tube is used to represent one penguin.

2. ## An investigation into the effect of a germination inhibitor on the germination of seeds.

3 star(s)

Contest is when some of the seeds in the Petri dish get a bigger share of resources (light, water, oxygen, etc.) than others, and some germinate quicker than others. So this is why most of the seeds, but not all, in the control Petri dish (no inhibitor), germinated, and it

1. ## Investigating heat loss from huddling penguins.

However in a huddle the penguin in the middle will lose heat very slowly as its environment is the other penguins and they all virtually have the same temperature. The penguins surrounding the penguin in the middle, will lose heat, not as much as the penguin stood on its own but greater than the penguin stood in the middle.

2. ## Heat loss in Emperor Penguins.

a huddle, the less surface area exposed to the air per penguin. In my control experiment, with 1 beaker, the entire surface is exposed, meaning that more heat can be lost by convection, cooling the water faster. In Huddle I, each beaker is in contact with at least 3 others,

1. ## An Investigation into Water Loss from Plants.

31.28 30.72 30.16 1.12 3.58 6 31.61 30.99 30.20 1.41 4.46 7 30.22 29.49 28.56 1.66 5.49 8 31.23 30.36 29.83 1.4 4.48 9 30.76 30.11 29.61 1.15 3.73 10 29.71 29.16 28.76 0.95 3.19 11 29.94 29.44 29.02 0.92 3.07 12 28.16 27.7 27.27 0.89 3.16 13 30.12 29.71

2. ## Investigating Heat Loss in Model Animals

are spread out and have very few free electrons, meaning that heat can only travel through it very slowly. Convection Convection is when heat is transferred in a liquid or gas due to the particles moving. As the particles warm up, the spaces between them expand, making them less dense and thus making them rise.

1. ## Why Penguins Huddle?

-9.8 -7.6 -9.0 -3.8 14 -16.6 -11.2 -8.6 -10.2 -4.2 16 -17.6 -13.2 -9.6 -11.0 -4.8 18 -18.8 -14.8 -11.0 -12.0 -5.0 20 -19.6 -15.8 -11.6 -13.6 -5.7 Analysis of Evidence: My result doesn't clearly show that as I increase the number of penguins the temperature remains high, this also

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

The percentage change for the single test tube was 33.26% and 24.809% for the test tubes in a huddle. The percentage change for the test tubes in a huddle was 8.451% less than that of the single test tube. Thus indicating the single test tube has a higher percentage change.

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