Which type of sugar dissolves best? | Assessment Resource Banks

This task is about what to keep the same or change for a fair test.

Sugar dissolves easily in water. Jane set up the following experiment to see which type of sugar dissolves best.

The sugars tested were:

White sugar
Brown sugar
Icing sugar
Castor sugar

Spoonfuls of sugar were added to the water one at a time. The solution was stirred until no more sugar dissolved. The number of spoonfuls was counted. Fresh water was used for each test.

Question 4Change answer

For this to be a fair test which of the following would need to be kept the same?

	Kept the same? Choose Yes or No
a) The temperature of the water	YesNo
b) The type of sugar	YesNo
c) The volume of water	YesNo
d) The amount of stirring	YesNo
e) The size of the spoon	YesNo