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Thursday, November 27, 2014

Making gloop

We are investigating materials.
Today we were talking about solids and liquids.
We know that solids are usually hard but liquids are easy to pour.
Water is a liquid and cornflour is a solid.
What happens when you put some water into cornflour?
It mixes like custard but is neither a proper solid nor a proper liquid.
It looks like a liquid and it spilled like a puddle onto the floor
teacher could pick the puddle up like a solid!!!
When you poke the liquid it feels hard like a solid but when you just leave your finger in it your finger sinks through it like a liquid.
If you had a big enough bath you could even run across it!!!
Have a look:

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