Non-Newtonian Fluid ... or Cornflour Goo to you and me.

We haven't done very much science for a while so today was a good day for a little play. I found this link for Cornflour Goo at Kids Make Stuff some time ago but I have been putting it off for fear of the mess. However, it is a nice sunny day today so I though we would try it outside.

I only made a small batch (half a cup of water, a little food colour and a bit over a cup of cornflour but we managed to have lots of fun with it any way.
It took a little while to get Junior to give it a prod but once he got his hands in there I couldn't get them out. There was lots of giggling, poking, squeezing, squelching and mucking about and a little discussion about solids and liquids. Not sure if he learnt much but we both had lots of fun. Have a look at the following You-tube clips if you want to see what the goo is like.