A good example that shows that air is really "stuff" is the way a parachute works. After doing the activity, think of the problems a parachute would have if air really was just empty nothingness. Work ...

To test your parachute, you will drop it from a certain distance and time its descent. Then you will use the drop height and descent time to calculate the descent rate, which is the amount of time ...

A man died skydiving over the weekend after his parachute "failed to deploy," according to Louisiana authorities.