Posted by: Scott on: October 6, 2008
I created this lab last night and we did it today. Overall it went fairly well. physical-chemical-change-lab I began the lab by lighting a strip of magnesium to demonstrate a chemical change. All that is left after that very bright flare is white powder. They really liked that demonstration. Then on to the lab. The [...]
Posted by: Scott on: August 24, 2008
This is a standard demo, one I did with my 8th grade Physical Science class and it stuck with them. It uses sugar to show the difference between a physical change and a chemical change. The first step is to dissolve sugar in water and then evaporating the water over a low flame. I usually [...]
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