So, my 8th grade son now has Physical Science in his scheduled curriculum. He's lovin' it!
The other day, we did an experiment that involved mixing water with baking soda and then taking two copper insulated wires and attaching each wire onto the positive and negative posts of a 9 volt battery.
We all know what happens to copper when it is allowed to be outside in the elements. It turns green. The statue of Liberty is a perfect example of this... but what we found interesting was the pretty color of bluish green that happens to the water. 
We also found that the positive wire turn blue green while the negative wire turned black. What’s with that??
We had a lot of fun with this experiment. Wait til you hear about the next…
More later,
Heidi
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