This lab used household items to create a barometer. The homemade barometer consisted of the following materials: a balloon, a small glass bowl, a small piece of tape and a straw. The balloon was cut in half ant stretched over the top of the bowl. Then the straw is taped in the center of the balloon membrane. Periodically the height of the tip of the straw was measured and recorded with the affiliated pressure published by the weather channel.
The barometer was very simple to construct, even though stretching the balloon was rather annoying. The calibration process required the use of excel to calculate a trend line. This lab showed how easy it is to make a homemade barometer, and showed what steps were necessary to calibrate it. Plotting the data gave me with a better understanding of excel and how to properly format the tables and graphs. The additional exposure to excel should help me present technical findings in a more professional manner.