Method For Sugar Experiment

Aim: To investigate whether the concentration of sugar in water has an effect on the freezing rate of water.

Materials: 4 x 200 mL water
400g sugar (to be split into three quantities of 66g, 134g and 200g)

Equipment:

• 4 plastic cups
• Freezer(set at -18°C)
• Timer
• Thermometer
  

Method:

1. Distribute materials into cups as follows:

• 1 x tap water
• 1 x tap water mixed with 66g of sugar
• 1 x tap water mixed with 134g of sugar
• 1 x tap water mixed with 200g of sugar

2. Measure the temperature of each of the solutions and alter temperature if needed to ensure a fair test.

3. Place all cups inside the freezer and begin timing.

4. Measure the temperature of the water at intervals, beginning with 20 minutes and decreasing as the solutions are near freezing point.

5. Record all data and observations.

6. Stop measuring once all 4 solutions have frozen.

7. Repeat steps 1-6 at least 3 times.