In Science Year 6 have planned and set up their own investigations to find out in which conditions some micro-organisms grow best. The challenges involved growing their own micro-organisms in controlled conditions on different types of bread. The children chose their own independent variables and worked together to decide on the variables that needed to be controlled in order to make their tests fair and their results valid. All children needed to make their investigations safe using their own risk assessments.
Results were gathered and evaluated. It seems that warm moist conditions were best for growing the most mould! The children enjoyed looking at the different types of mould. It was interesting to see that the bread that was stored in the fridge grew little or no mould. Previously the girls grew colourful bacterial colonies on agar plates from the dirt from their own fingertips!