Itchiest Substance
- Episode aired Aug 6, 2006
- 46m
![Brainiac: Science Abuse (2003)](https://m.media-amazon.com/images/M/MV5BNjU1ZDAyYjYtNmM5Mi00YjM5LTk4Y2ItMjQ0YTg5YjQyZDJmXkEyXkFqcGdeQXVyMTcwMjc4MzEw._V1_QL75_UY281_CR1,0,190,281_.jpg)
We testing out a variety of substances to determine the most itchy; can you run through wallpaper? The search for the strongest bat; we find out which food gives off the longest lasting smel... Read allWe testing out a variety of substances to determine the most itchy; can you run through wallpaper? The search for the strongest bat; we find out which food gives off the longest lasting smell; we find out if helium makes a stereo sound squeaky; more microwaves and caravans go boo... Read allWe testing out a variety of substances to determine the most itchy; can you run through wallpaper? The search for the strongest bat; we find out which food gives off the longest lasting smell; we find out if helium makes a stereo sound squeaky; more microwaves and caravans go boom; Derek Achorah is the celebrity on helium.