Year 5 have been independently investigating how much fat is in various brands of crisps. We crushed the crisps on to squared paper and counted the amount of squares that were at least half covered in grease. We made sure the test was fair by keeping all conditions the same (dependant variables) apart from the brand of crisps (independent variable). Ask the children what they kept the same to see if they can list all the dependant variables we had. We are going to evaluate each other’s results and create corresponding graphs later this week.