Sugar cube practical

The sugar cube and water bath experiment is used to investigate how temperature affects the rate of dissolving. 

• White sugar cubes (all identical in size) X 3

• 2 X Water baths set to different temperatures 30 and 60

• 1 Beaker per group

• Thermometer

• Stopwatch

• Stirring rod or spoon

• Measuring cylinder 100cc

Step-by-Step Procedure

1. Measure the Water: Use a measuring cylinder to pour exactly 100 ml of water from your first water bath into a beaker.

2. Check Temperature: Place a thermometer in the beaker, record the exact starting temperature in your results table, and then remove the thermometer.

3. Drop and Time: Drop one sugar cube into the water and start the stopwatch immediately.

4. Stir Consistently: Stir the water gently and at a steady speed.

5. Stop the Clock: Stop the stopwatch the exact moment you can no longer see any solid sugar grains. Record the time in seconds.

6. Repeat: Wash out your beaker and repeat the steps using water from the other, hotter water baths.