Science series. The Lab Rats investigate buoyancy at Richard's top secret testing facility, by filling a paddling pool with salt in order to float a sand-filled rubber duck. Show more
Discover 11,128,835 listings and 280,103 playable programmes from the BBC
Science series. The Lab Rats investigate buoyancy at Richard's top secret testing facility, by filling a paddling pool with salt in order to float a sand-filled rubber duck. Show more