Mad scientists had ‘eureka’ moments when they carried out experiments as part of their school's science week.

Pupils from St John’s Primary School, in Radlett, learnt about importance of water and what you can do with it during lessons last week.

The nursery to Year 2 pupils also had a visit from Captain Calamity, who held a science show for Year 1 and 2 and a bubble show for nursery and Reception classes.

The school also held a science breakfast challenge in which pupils took part in experiences with their parents.