osmosis

• what is the equipment needed for the osmosis practical?

  beakers, potatoes and the 2 solutions
• method for osmosis practical:

  1. cut up the potato into 3 identical cylinders and measure the mass with a balance
  2. add to 3 beakers with different concentrations of sugar solution
  3. leave for a day
  4. then take them out to dry and measure their masses again
  5. then calculate the percentage difference
• what is the dependent variable of the osmosis practical?

  the potato mass
• what is the independent variable of the osmosis practical?

  the concentration of the sugar solution
• what is a control of the osmosis practical?

  potato