I currently do Year 11 Biology and I don't understand some results I got from an experiment. We learnt in class that higher temperatures speed up the rate of diffusion, but the results from my experiment didn't reflect this. For the experiment I heated up beakers of water to 40 degrees C and put an egg in each for 4 mins, then repeated the process with 80 degrees C. I also put some beakers with water and an egg in them in the fridge (5 degrees C) for 30 mins. Before and after the experiment I weighed and measured the eggs and measured the changes in the water level. The average results were:
Eggs in fridge- Lessened in size by 0.73%, Grew in weight by 1.74%, Water level lessened by -0.69.
Eggs at 40 degrees- Grew in size by 0.70%, Grew in weight by 1.70%, Water level lessened by 2.7%
Eggs at 80 degrees- Lessened in size by 0.36%, Grew in weight by 1.16%, Water level lessened by 2.1%.
I don't understand these results at all as they seem to be completely random and resemble no biological theory of my knowing. The biological report is due Monday and I have no idea why I got these results, so any help at all even if you're not sure about the answer would be very greatly appreciated as I am extremely desperate and don't want to fail!
Thanks HEAPS,
Caralea
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