The mystery of Ooblek!

Today some mysterious STUFF appeared at school called Ooblek. We had a look at it and then went away to wonder about what it might be. We thought it was chalk, dinosaur poo, slime, hard goo, spew, sticky, snot, green dog poo, squashed up green bananas and so much more. It looked green, slimy, shiny, wet, runny, hard, soft, gooey, muddy, bubbly, solid, gungy, sticky and sloppy.

Then we had a turn feeling it. We grabbed it, we stood in it, we walked through it, we picked it up, and we got stuck in it! What was this crazy stuff?

We discovered that it was hard when you touched it but runny when you pick it up. When you stood on it you sunk and you could get stuck. It made a footprint and then ran back together so the footprint disappeared. It felt like playdough. It was solid green. Afterwards when it dried it felt like chalk.

Hmmmmmm so was it a liquid or a solid? No one really knows.

Ooblek was actually a science experiment. When we were at Jump Jam Mrs Aitken and Mrs Millet made the Ooblek for us to look at. It is an interesting substance because it appears hard to the touch but when you move through it, it is runny. You can make ooblek at home with ingredients from the cupboard!

Cornflour and water were turned into Ooblek (and colour was added). You can mix 3 parts of cornflour to 1 part of water and stir, add colour. Is it liquid or solid? You decide!