This Shockwave tutorial for Grades 5-8 explores properties of gases in an interactive, game-like environment. It was designed to help students build concepts about mass, volume, and density of gases. Activity 1 dispels the myth that "gas is weightless" (a commonly-held misconception among secondary students). Activity 2 demonstrates density as students place helium, air, water, and oil in a virtual cylinder. Activity 3 illustrates what happens at the molecular level as gases are heated or cooled or undergo pressure changes.
Editor's Note: This item is part of NOVA's "Balloon Race Around the World" web site. SEE RELATED ITEMS for a link to a teacher's guide and additional interactive resources.
Teachers' Domain is an NSF-funded pathway of the National Science Digital Library (NSDL). It is a growing collection of more than 1,000 free educational resources compiled by researchers and experienced teachers to promote the use of digital resources in the classroom.
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<a href="http://www.compadre.org/portal/items/detail.cfm?ID=10706">WGBH Educational Foundation. Teachers' Domain: Floating and Sinking: Hot Air Balloons. Boston: WGBH Educational Foundation, March 17, 2008.</a>
Teachers' Domain: Floating and Sinking: Hot Air Balloons. (2008, March 17). Retrieved May 22, 2013, from WGBH Educational Foundation: http://www.teachersdomain.org/resource/phy03.sci.phys.matter.balloon/
WGBH Educational Foundation. Teachers' Domain: Floating and Sinking: Hot Air Balloons. Boston: WGBH Educational Foundation, March 17, 2008. http://www.teachersdomain.org/resource/phy03.sci.phys.matter.balloon/ (accessed 22 May 2013).
%T Teachers' Domain: Floating and Sinking: Hot Air Balloons %D March 17, 2008 %I WGBH Educational Foundation %C Boston %U http://www.teachersdomain.org/resource/phy03.sci.phys.matter.balloon/ %O application/shockwave
%0 Electronic Source %D March 17, 2008 %T Teachers' Domain: Floating and Sinking: Hot Air Balloons %I WGBH Educational Foundation %V 2013 %N 22 May 2013 %8 March 17, 2008 %9 application/shockwave %U http://www.teachersdomain.org/resource/phy03.sci.phys.matter.balloon/
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