Watch the whole episode of Operation Ouch! Do Try This At Home: Eye Gunk on BBC iPlayer. Want to show off your brilliant experiment results? Send your photo or short video to us by clicking the ...

In episode two of Operation Ouch, the new medical series for CBBC, identical twins Dr Chris and Dr Xand van Tulleken continue their exploration into the fascinating world of medicine and biology ...

The surface of the shell should be drastically different to the other eggs in the experiment. Watch the whole episode of Operation Ouch! Do Try This At Home: Eggy Teeth on BBC iPlayer.

Interview with Dr Chris and Dr Xand van Tulleken, presenters of new CBBC series Operation Ouch. Can you give us a ... job treating patients at home and on the side of the road – often preventing ...