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

The effect the surface area of an organism has on the rate of heat loss.

Extracts from this document...

Introduction

Biology coursework write-up: The effect the surface area of an organism has on the rate of heat loss. Introduction The surface area: volume ratio of an organism gets larger as the organism gets smaller. As the surface area of an organism is what affects heat loss, you are unlikely to get small animals such as insects in the North Pole and large animals such as polar bears in the desert but you do get large animals such as elephants in the desert and small animals such as rabbits in the arctic. ...read more.

Middle

Variables Prediction As the volume of water increases, the rate of heat loss will decrease. This is because the surface area to volume ratio of the higher volumes is much lower than that of the smaller volumes, therefore the smaller volumes will drop 100C very quickly compared to the higher volumes. Method I will use volumes 20,30,40,50,60,70,80,90 and 100cm3 of water at 700C The water will be put in a beaker and the time for the temperature to drop from 70-600C will be recorded. To start at 700C I will allow the water at a higher temperature to cool. ...read more.

Conclusion

0.1 0.425 0.2 0.455 0.3 0.511 0.4 0.523 0.5 0.539 Conclusion As the volume to surface area ratio increased, the rate of heat loss decreased. This agrees with my prediction. Analysis The results for the experiment could have been slightly inaccurate as room temperature increased by 20C during the experiment. I think using real animals could prove the prediction and this experiment only shows results for animals without the ability to control their body temperature, e.g. cold-blooded animals. Using warm-blooded animals or a source of heat could be done as a follow up experiment. ...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)

    To measure the circumference of a huddle 1. To measure the circumference of a huddle, to place a string around the entire huddle and measure the string would be inaccurate. To gain a more accurate measurement, the string should trace the test tubes on the periphery, as shown below. 2.

  2. Marked by a teacher

    Experiment to find the relationship between the size of the surface area to volume ...

    3 star(s)

    I collected together 5 different containers (a 100ml beaker, a 200ml beaker, a 250ml Pyrex bottle, a 500ml Pyrex bottle and a 1000ml Pyrex bottle).

  1. Marked by a teacher

    An investigation into the relationship between heat loss and surface area to volume ratio

    3 star(s)

    A 125cm3 beaker with 125cm2 of water. And a 40cm3 beaker with 40cm3 of water. I chose these certain volumes for two reasons. Firstly that they are far apart and so will not be similar with each other and have different gradients. I will have a thermometer clamped into position half way into the beaker.

  2. Investigating Heat Loss in Model Animals

    I have discovered that a lot of the heat is lost through the top of the test tube, so in the full experiment I will use bungs to prevent this thus making the experiment more accurately centred round my investigation.

  1. Conducting an experiment to find out what effect the surface area has on the ...

    More water loss mean higher the rate of transpiration so water uptake will be more this will be seen on the potometer. There are many other factors other than Leaves surface area that affect the rate of transpiration, these are listed below and explained how they will be controlled. 1)

  2. Investigation to demonstrate how the surface area and volume affects the heat loss in ...

    In this investigation it is the size of the test tube that will be altered. Three different sized test tubes will be used to represent three different sized animals. A boiling test tube, standard test tube and centrifuge test tube will be used.

  1. How Surface Area affects Heat Transfer.

    Trial Experiment. My trial experiment proved that Plasticine melted when it reached 53?C. I worked out that 40?C was a more suitable starting temperature for the water, but unfortunately, this means that there will be less energy to transfer. Trial Experiment Results.

  2. The Loss of the Aral Sea

    The Loss of the Aral Sea YEAR AREA (Km�) SEA LEVEL (m) SALINITY (g/1) 1960 68,000 53.0 10 1985 45,713 41.5 23 1986 43,630 40.5 / 1987 42,650 40.0 / 1988 41,134 39.5 / 1989 40,680 39.0 30 1990 38,817 38.5 / 1991 37,159 38.0 / 1992 36,087 37.5 /

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