Air is composed of freely moving molecules. Air molecules trapped in a volume occupy all of the available space and rebound against the walls. The number of rebounds on the walls is directly related to the notion of pressure. The more molecules there are, the more they hit each other, the more numerous the rebounds are. The pressure therefore increases with the quantity of molecules.
File Type: Manipulative
Subject: Science
Grade: Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11, Grade 12
Date submitted: July 27, 2012
Search terms: balloon, tube, pump, gas, pressure
Publisher Name: eduMedia
Note: By using any resource from this site, you are agreeing to these Terms.
© Copyright 2012 SMART Technologies ULC All Rights Reserved | Privacy Policy
This site uses cookies to improve the experience of our visitors. By continuing to browse this site, you are agreeing to our use of cookies. Find out more.
