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Mr. E's class blog. We're a fifth grade class from Connecticut and are excited to share our learning with everybody. Please look around and let us know your thoughts by leaving a comment or two. We'd love to read about you too!



by Z teacher: Mr. Edwards
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In science lab we made a barometer. A barometer is a instrument that measures air pressure. When air pressure is greater it presses down on the balloon which makes the pen attached to it go up. When the air pressure is lower the air in the jar pushes up which makes the balloon go up making the pen go down. What's really weird is that every square inch is 14.7 pounds of air pressure
Article posted March 14, 2011 at 02:00 PM • comment • Reads 141 • Return to Blog List
 
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