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IMHO doing chemistry experiments with young children also depends on
the confidence of the facilitators.  As a chemist, I'm confident
doing experiments with dry ice and with dilute acids and bases with
6-8 year-olds.  I'd include the calcium chloride experiment also.
You may want to use heavier bags (freezer weight), certainly have
kids wear eye protection, and be in an area with a sink and a
non-carpeted floor.   Read MSDSs, and think through what happens in
case of spills.

I also think chemistry experiments are more fun for kids when they
can acquire the ingredients easily at grocery, drug, or pool supply
stores.  Have some fun!  Jane

--
Jane Snell Copes	  Science Outside the Box    651-357-3316 (cell)

Science Outside the Box is a tiny business that celebrates the
scientist in every one of us.  I am a writer and teacher, and I have
fun with science every single day.  I'm especially fond of designing
classes and science magic shows for kids and parents.

"To be an inventor, you need a good imagination and a big pile of
junk."  Edison

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