Not me, but a woman who taught at that same Co-op that I did last year did cool experiments with her middle school students.
They grew geodes in egg shells
http://www.sweetpaulmag.com/crafts/d...tal-geode-eggs
How clouds make rain
https://thehappyhousewife.com/homesc..._a5y_p=2121528
Purify water with charcoal
https://thehomeschoolscientist.com/c.../#.VIOsAMkzCMQ
Ice cream in a plastic bag is something my friend who is a chemistry teacher did at my old school.
I wish I could remember more.
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---------- Post added at 04:00 AM ---------- Previous post was at 03:17 AM ----------
Not 100% sure if these are short enough but our classes were only an hour long, so...
I mean, take them
Or leave them
Figured no one else responded yet and I’d try to throw some ideas out to be helpful or provide inspiration
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