Thursday, October 17, 2013

Air is Matter Video

Do your students ever have trouble understanding the idea that air is matter? 

This video should help in only 90 seconds!

Check out this video I made called "Swimming in an Ocean of Air" which explains why air is matter. 

You will see a demo where I have evacuated the air from a vacuum chamber.  The chamber is on a scale, and when I let the air back in, you can see how much the air in the chamber weighs. 

By the end, I should convince you that air is matter. It is a physical substance that takes up space and indeed, has mass. 

And on top of all that, using physics, I answer the philosophical question: 

Is the glass half empty or half full? 

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