Last week we did the great bag of science demo in class. In this video, I get in the bag and a vacuum is used to take out the air. The greater pressure on the outside squeezes the person inside. How much air pressure? Well it’s 14.7 psi. That doesn’t sound like much, but is sure feels strong.
I did this activity with all my students and it was a long day yet lots of fun.
If you have any extensions, comments, or ideas let me know in the comments.
Get the Flash Player to see this content.

