Barometer Lab

The purpose of today's lab is to learn about the measurements of barometric pressure manually, by making a homemade barometer from instruments provided by Dr. Rood.  In order to take the measurements, the students had to use a bowl, a balloon, a straw, and finally, a ruler and a pencil to take the measurements. The following picture is an approximation of how the homemade barometer looks like:

Here are the results: