As scientists, Year 6 investigated microorganisms. They learnt what microorganisms are and discovered that they can be helpful and harmful. We carried out an experiment using yeast (which the children were surprised to know is a microorganism), sugar, water and balloons. We predicted what might happen and then observed the results. There was a great buzz in the classroom when the balloon began to inflate with carbon dioxide! Well done Year 6 for showing great enjoyment during science.