For our last day of science in 2011, we had a chemistry party. We made borax crystal snowflakes and snowy trees out of laundry bluing and ammonnia. We also made a great big tub of ooblek. What is ooblek? It is just ordinary corn starch and water, but when mixed together it makes the greatest slimy mess ever! Ooblek is called a non-newtonian liquid - which means it acts like a solid when firm pressure is applied to it, but it is also a liquid and will run between your fingers. Each student got to spend some time walking across and then sinking into the ooblek.
As a special gift from me, the class got a bag of candy chemistry experiments - pop rocks, zotz, and wintergreen lifesavers (who doesn't like making sparks in your mouth?!)
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