Science game show. The teams test their knowledge of buoyancy, while Richard challenges the Lab Rats to walk on water in a giant human hamster ball filled with air. Show more
Discover 11,128,835 listings and 280,062 playable programmes from the BBC
Science game show. The teams test their knowledge of buoyancy, while Richard challenges the Lab Rats to walk on water in a giant human hamster ball filled with air. Show more