Following on from their work investigating which substances were soluble,  year 5 generated their own questions about whether they could speed up the rate at which substances dissolved.  We worked in groups to choose a question to investigate and see if we could make jelly dissolve faster. Groups investigated whether the size of the piece of jelly affected the rate or the temperature of the water or the number of times it was stirred. We recorded our observations and the time taken to completely dissolve before writing a conclusion.