Beaker Of Water example essay topic
336 words
'Planning Osmosis is the net movement of water molecules from a region of their higher concentration through a partially permeable membrane. This movement usually takes place through a membrane which is permeable to water but not to solutes. In my investigation I am going to be investigate the factors affecting the rate of Osmosis. Some factors affecting this are: Length of membrane Temperature of water Concentration of solution The factor I am going to investigate is the length.
Equipment Vising tubes Starch 2% Beaker Water Stop watch Weighing Scales First I will get the vising tubing and I will fill it with 20 ml starch then I will measure the length, I am going to do 5 different lengths, 4 cm, 6 cm, 8 cm, 10 cm and 12 cm. I will then weigh it before the test, then put it in a beaker of water and leave it for 10 mins after I will weigh it again. I am going to do it 3 times so I can find an average for each measurement. Starch Vasing tubing Water I am going to make it a fair test by keeping the same amount of starch solution and the same amount of time the vasing tubing is in the water. Results Test 1. It fits a positive trend.
My results were good and there were no anomalous results Conclusion I think my investigation went well, and was done with quit a lot of care. Making sure the lengths were what we wanted was rather difficult, as it was hard to tie the tubing, also if the tubing was not tied tight enough the starch would leak out. If I did the investigation again I would use elastic bands to tie the ends. In addition I could of dont more results so it could have been more accurate and detailed and also maybe investigate the temperatures or concentrations that would effect the rate of Osmosis.
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