Today, Granny wants only one spoon of sugar in her tea. But how does the sugar dissolve into the water?
Soluble vs. Insoluble Substances
We know that some substances dissolve in water. We call these substances soluble. There are also insoluble substances, which do not dissolve in water. All the substances below are items that George comes across while he is making his marvellous medicine. Let’s try and guess which ones are soluble and which ones are insoluble. Drag the substances from the middle and drop them in the correct column.
Speed of Dissolving
There are some ways which we can make sugar dissolve quicker in water. See if you can answer the questions below by clicking on the right answer:
Which size of cup will dissolve sugar quickest?
Will stirring or not stirring make sugar dissolve faster in water?
Do you think you can get these questions right?