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

Biology Investigation What affects the crawling speed of maggots?

Extracts from this document...


Biology Investigation

What affects the crawling speed of maggots?


This is an investigation to find out what affects the crawling speed of maggots, there are lots of different variables which could affect the speed at which a maggot might crawl, we will control one of these conditions and investigate it fully to find out its affect. The variable I have chosen to investigate is the surface area of the maggot. I am going to observe how fast different size maggots can complete a set length, and then attempt to draw a conclusion by using precise measurements and observations.

The key variables I will have to observe for my investigation are of course the size of the maggots and their dimensions. Other variables will have to be kept constant however for it to be a fair and exact experiment, these include:

  • Temperature of the room
  • Dampness
  • Light
  • Length the maggots will crawl
  • Keeping the level of the platform stable

My prediction to the outcome of this experiment is an obvious one, the smaller the maggot is in dimensions, the greater its agility therefore the faster it will crawl. This kind of natural phenomenon is apparent especially in evolution of species.

...read more.






























Preliminary Conclusion

From the result table above, I can draw the conclusion that In most cases, the greater the length of the maggot, the greater the amount of time it took for the maggot to complete the set distance. Ofcourse these experiments will have been affected by a lot of variables which we could not control, but seeing as these were only preliminary we did not attempt it. Also, I have not shown the speed of each maggot for my preliminary as this was just to test my method.

I will now improve on this experiment by introducing surface area, and conduct experiments to see how each of these factors effected the maggots overall performance.

I will also look at ways to improve my experimental method and list the apparatus we used in order to get our results as fair and precise as possible in our given conditions.

To see how the surface area affected the speed at which a maggot completes a set distance

In order to improve my method of experimentation, I will use a narrower track than before, this

...read more.


 One way which would vastly improve the accuracy of our experiment would be the use of video streaming equipment; with this we could record each maggot making its individual run. We could put these recordings onto a computer and use a program to slow down and very accurately record each run.

After we have these accurate results (accurate to within milli-seconds maybe) we could use Microsoft Excel to create a spreadsheet, which would tell us each maggots speed, surface area, volume and surface area to volume ratio.

A good way to improve my experiment without the aid of additional funding however would be to use surface area to volume ratio manually without the computer. This data would tell me a lot more about how each variable affects the maggots speed and would give good accurate results if plotted onto a graph.

A completely new approach to our experiment would be to use some sorts of movement sensors hooked up to computers, these sorts of high tech equipment would be able to give us a lot more freedom of choice.

 Also, control over a room with central heating would be an ideal way to keep the temperature exact, giving compensation for human body heat.

...read more.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion section.

Found what you're looking for?

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

Here's what a teacher thought of this essay

3 star(s)

*** An interesting report but there are some concerns over the validity of the results.
Planning. There needed to have been much more thought put in regarding the control of key variables. Maggots are very sensitive to light and temperature and there seems to be little mention on how these are to be controlled. There is no discussion as to why different sized maggots were timed over different distances and since this is a key variable it seems to make the experiment invalid.
Obtaining Evidence Results were recorded clearly but more care was needed in the headings of tables. There was no graph or discussion of results obtained.
Evaluation There are few practical suggestions for improving the method. There seems to be little point recording the time in milliseconds when other key variables are not being controlled.

Marked by teacher Stevie Fleming 03/01/2013

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 Forces and Motion essays

  1. Marked by a teacher

    The aim of this experiment was to compare the elasticity of arteries and vein ...

    4 star(s)

    The equation was as follows: ((new length - original length) � original length) x 100 Overall Elasticity: This was calculated by subtracting the length after removal of force from the length after application of force. Table of results: Arteries: Force Applied (g) Length (mm) After: Application of Force Length (mm)

  2. What affects the acceleration of a trolley down a ramp?

    You will notice I haven't done this. I didn't do this because I only did each height three times so it could be that the result that seems wrong is right and the other results are wrong.

  1. Investigating the factors affecting the speed at which a parachute falls.

    was a minus number, meaning that they had fallen slower with greater mass when they should've fallen faster. At first, I thought that the second result (the parachute with 7g added mass)

  2. How does the weight of an object affect the friction it has on the ...

    Force needed to overcome static friction (N) 325 1.8, 1.9, 1.9, 475 2.6, 2.7, 2.5 625 3.5, 3.6, 3.8 825 4.8, 4.9, 4.8 975 5.7, 5.8, 5.9 1125 6.9, 6.7, 6.8 2275 8.1, 7.9, 7.8 Tables of Averages In these tables of averages, a column for weight has been added, so as to measure the downward force.

  1. The Physics of Paper Helicopters

    x Mass-0.97 Evaluation and conclusion Another variable that I think might effect the time taken for the helicopter to fall is the placing of any extra mass on the helicopter.

  2. Investigate to see if adding mass to a cupcake case will increase the speed ...

    Test 4: I will weigh the cupcake cases and repeat the previous experiment. According to the structure going up by two. I will do this to see if the cupcake cases are of different masses. Test 5: I will change the height from which we drop the cupcake cases from 2.5 meters to 2 meters.

  1. Report on Newton's laws of motion

    and useful law of the three, in this law Newton relates the unbalanced force acting on an object and the resultant acceleration of the same object. This law can be put mathematically as: ________________ ?F = ma. ________________ Where F is the net force, m is the mass, and a the acceleration.

  2. Rocket Essay. How Do Rockets Work?

    This is a photo of a rocket carrying a satellite blasts off in Russia. [Techlusion 2012] Positive Points About Rockets There are a lot of positive points about rockets, we can learn far more than just earth, we could learn about other planets, the environment in other planets, etc.

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