Some substances dissolve when you add them to water or other liquids. When something dissolves it might look like it has disappeared but it has just become mixed in with the liquid and become see through/ transparent. If something can dissolve in water it is called soluble and if it can't dissolve it is called insoluble.
The first thing that we are going to do is set up our 4 glasses/ containers. In each of the glasses we are going to have a different liquid. We are going to add the same amount of hot water, cold water, oil and vinegar into each glass. We are going to label each glass as well so that we know what is in each glass
We are now going to add a candy cane to each glass and leave them for 10 minutes
After 10 minutes we are going to take out the candy canes and have a look at what has happened. You should see that the warm water was the best at dissolving the candy canes and the oil was the worst. The reason for this is because the candy canes are made from sugar and the sugar molecules are very good at dissolving in water. When the water has been heated the candy cane can dissolve quicker as the heat will help break apart the bonds holding the sugar molecules together
If you don't have candy canes, or you want to repeat this activity, you could experiment with other sweets, like hard boiled sweets, and see what happens. You could also try some other liquids and see what effect they have on dissolving sweets
