School News

Prep 3 Chemistry Investigation

Prep 3 (Y5) pupils had a fantastic chemistry lesson recently when Mr Tryon from Senior School visited to take their lesson alongside their usual science teacher, Miss Black. The students investigated the Iodine Clock reaction that gives a sudden colour change around 30 seconds after the solutions are mixed.

Pupils were given the challenge of slowing the reaction by diluting one of the solutions so that it changes colour after 40 seconds. They had to work out how much water to add, test various mixtures and measure as accurately as possible.

The winning groups were able to design clocks that changed colour within 0.2 seconds of the target time. It was a really exciting and inspiring lesson. Mr Tryon was astounded by the dexterity, organisation and accuracy of the boys for their age. Well done boys!

Children's Hospital Charity