This week, we answered the question ‘Do all solids that we can pour, dissolve?’ We tested sand, instant coffee, filtered coffee, salt, sugar and flour ensuring that all other variables were kept to same so that we knew we were conducting a fair enquiry. We made predictions before beginning our enquiry, then tested each solid and wrote down our observations so that we had a clear record of our results.
Next week, we will be looking at whether the temperature of water affects how quickly or how much of a solid can be dissolved.