How to make a letter balance. How to see if a ring is pure gold.
Disclaimer and Copyright: Minors should always get the permission of a
parent or responsible adult before trying any of these experiments. All cartoons
and images on this website are copyright Tim Hunkin. All rights reserved.
All other aspects of this web site other than the cartoons and images are
copyright Tim Hunkin and Shane Frazer. All rights reserved. Site
first launched 1st November 2000. Major update August 2003 and 2006.