Well our tooth sitting in coke is looking very brown and ugly this week. We have taken it out of the coke and tried to wash it clean again with water – as suggested by Lachlan a while ago. Some of the coke did come off. However the tooth is still really brown and when we were washing it in water some of the tooth was coming off. We will keep it in water until next week and see if the colour improves any.
(sorry our camera shots of this are not very good – come in and have a look.)
Loving this experiment! The children would be liking it too.