If your child has created their Superhero scene on Purple Mash they may have noticed that there was a 'power word' on there to describe a sound that the Superhero might make when hitting something (WHACK!)
Ask your child to think of any other words ie POW! ZOOM! WHOOSH! BOING! BANG!
Ask them to find objects from around the home to explore and replicate those sounds e.g. kitchen utensils, saucepans, colander, instruments, hairbrush, comb, toys etc.
Can you or a sibling guess which word they are trying to recreate?