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I am an Education Coordinator at a museum in Canada. I didn't take
sciences in university (there's a reason I did a history degree) but I did
take physics in highschool and rather enjoyed it. I know find myself doing
science programmes (light, electricity, sound) here at the museum. I have
been following what was left for me, information wise. As I have been
trying to research electricity, I found this site
<http://amasci.com/miscon/elect.html> It seems to help me, but I just
want to check that it is somewhat reliable (I know that no source will
ever be 100% reliable). Anyone out there familiar with it?
(there's a reason I did a history degree)
a lot of what I was taught in elementary school was WRONG.
Since I have just discovered that our 'weighing air using two
balloons and a meter stick' experiment isn't accurate
(apparently it only shows that air under pressure weighs more
than air that isn't), does anyone know of any simple
experiments/demonstrations that can show kids that air has
weight? Or is it something we have to take on faith?