1. 4.9 To conduct any activity to demonstrate osmosis

2. Before you start make a copy of this Table of results Tube contents TurgidityMass (g) at startafter test periodat startafter test period Sucrose solution Distilled water

3. Step 1 Soften the lengths of visking tubing by soaking them in water.

4. Step 2 Knot one end of each piece of tubing.

5. Step 3 Half fill one piece of visking tubing with sucrose solution.

6. Step 4 Control: half fill the other piece of visking tubing with distilled water.

7. Step 5 Eliminate as much air as possible. Knot the open end. Wash and pat dry.

8. Step 6 Tie the two ends of the visking tubing together.

9. Step 7 Observe the turgidity and record the mass of each piece of tubing.

10. Step 8 Hang each tube from a glass rod into a beaker of distilled water. Leave for 15 minutes.

11. Step 9 Remove the tubing, dry and re-weigh. Observe the turgidity.

12. Expected result

13. Results Tube contents TurgidityMass (g) at startafter test periodat startafter test period Sucrose solution Distilled water

14. END