This week in their Science lesson the children have been learning about reversible and irreversible changes. We conducted an experiment to see whether mixing vinegar and bicarbonate of soda together would be a reversible or an irreversible change. The children mixed together vinegar, bicarbonate of soda, washing up liquid and red food colouring. This caused a chemical reaction and very quickly a foamy material was formed which started to flow out of the bottles, it looked like a volcano! The children established that this was an irreversible change as a new substance had formed. It was a fantastic, hands on experiment and the children learnt a lot!
Last week the children had started to build bridges using a range of different materials and this week they had a chance to complete these bridges and then test to see whether the bridges could hold the weight of a toy car. The results certainly were fascinating!