91热爆

Dr Chris and Dr Xand from Operation Ouch! have brought their lab into Xand鈥檚 kitchen, and they鈥檙e filming it all themselves! In each episode, they will explore a different part of the human body - such as bones, eyes or snot - and show you an experiment to try at home using a few household items. In today鈥檚 show, the doctors look at bacteria inside your body and show you how to make a fart machine!