THE Powerhouse Discovery Centre will be mad and messy this weekend for the National Science Week open day program.
Castle Hill students Imogen and Freya Wadlow, founders of i-fink and Planet Patrol, and winners of the World Wildlife Fund's 2012 Young Panda Earth Hour Award, are curating the exhibition and bringing their creativity and passion for science along for the ride.
So what's going to be different about their exhibition?
"Well for a start it's going to be really fun," Imogen said.
"That's why we themed it around a circus — cool displays, mad messy science shows and some rocket launching as well as the chance to do your own science with us, see animals from Taronga Zoo mobile and meet friendly scientists," she said.
"This exhibition suits everyone, from the very young, to teens, to adults," Freya said.
"It's not just for those who are mad on science, it's just an interesting and fun way to spend a couple of hours."
Visitors will test the limits of the human body, learn about clean energy and find out which chemical reactions create fireworks. Workshops will run throughout the day.
Details: Powerhouse Discovery Centre, 172 Showground Road, Castle Hill, Saturday, August 11, 10am-4pm.