As an introduction to our new science topic ‘materials’, the children were presented with a strange white material which they had to investigate. They first predicted what they thought it was by looking at it and touching it. They then observed what happened when they added small drops of water to the powder. There were lots of ‘ooohs and aaaaaahs’ as the powder grew bigger and bigger into a snow like substance. The class were amazed - I think it may even appear on some of the children’s Christmas lists!