ScienceBoom » earth science http://scienceboom.com Science Demonstrations, Projects, Experiments and Teaching Tips from ScienceBoom Wed, 28 Dec 2011 20:40:10 +0000 en hourly 1 http://wordpress.org/?v=3.3 ScienceBoom Episode #5 – Barometric Pressure and Temperature http://scienceboom.com/262/scienceboom-episode-5-barometric-pressure-and-temperature.htm http://scienceboom.com/262/scienceboom-episode-5-barometric-pressure-and-temperature.htm#comments Tue, 27 Oct 2009 14:01:15 +0000 Michael Doig http://scienceboom.com/262/scienceboom-episode-5-barometric-pressure-and-temperature.htm

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]]> Barometric pressure is responsible for much of our weather. In this episode, I travel to Hawaii so we can explore the relationship between barometric pressure and temperature.

Host: Michael Doig
Duration: 4:11

Materials

Can of Compressed AIr – Can be purchased at any office supply store for around $6.

Raytek MT4 Mini Infrared Thermometer – The ability to take the temperature of just about anything without touching it is amazing, not to mention entertaining. I took a reading of my desklamp and found out the bulb was 212?F, Wow!

Casio Men’s Pathfinder Triple Sensor Altimeter/Barometer/ Digital Compass Watch – For the money, this watch is a steal. Barometer, compass and thermometer all in one place. Great for hiking or scientific exploration. The manual is really dense, but operating the watch was relatively easy. My biggest problem was with the temperature, it was constantly bouncing around.

Barometric Pressure Fast Facts

  • A column of air one square inch in cross-section, measured from sea level to the top of the atmosphere, would weigh approximately 14.7 lbs per square inch or 1013.25 mb.
  • An increase in elevation results in a decrease in barometeric pressure.
  • As pressure decreases, temperature also decreases.

Special thanks to Mike Ogasawara and David Doig.


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]]> http://scienceboom.com/262/scienceboom-episode-5-barometric-pressure-and-temperature.htm/feed 5 New Earth Science Reference Tables for 2010 http://scienceboom.com/219/new-earth-science-reference-tables-for-2010.htm http://scienceboom.com/219/new-earth-science-reference-tables-for-2010.htm#comments Sat, 19 Sep 2009 13:15:43 +0000 Michael Doig http://scienceboom.com/?p=219

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]]> New York has updated the Earth Science Reference Tables for 2010. Several of the diagrams are much easier to read.


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