Do your kids love science? Well, clear your kitchen countertops and get ready because RTÉjr have a brand new science show that will introduce your family to some amazing experiments that you can do at home.

Let’s Find Out is set on the space-ship ‘Curiosity’ - captained by alien puppet Zoom and her trusty assistants, physicist Mark Langtry and biochemist Ciara Murphy. Together they explore questions sent in by children.

During a visit to RTÉ, Mark enlisted the help of some well-known parents to demonstrate some fun kitchen-table science experiments they can do with their children. Watch Keith Walsh from 2FM’s Breakfast Republic makes Oobleck above.

Mark and Keith
Mark shows Keith how to make Oobleck

What you need: 

  • Cornflour
  • Warm water
  • Bowl
  • Food colouring 


  • Use approximately one part water to two parts cornflour 
  • We used 500g of cornflour and approximately 250 ml water

Warning! Do not throw the mixture down the sink afterwards!

We need your consent to load this rte-player contentWe use rte-player to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences

We caught up with Mark to find out what parents and kids can expect from this fun new science show. 

"There's something for children of all ages. We do so many cool experiments; simple ones that you can do at home and then we like to super-size, we like to push the boundaries and we also travel to really cool places around Ireland to explore Irish history as well," says the presenter.

Let's Find Out is a new science series on RTEjr, co-funded by Science Foundation Ireland. Tune in on RTEjr Monday to Friday from October 8th at 5.20 and 13.30.