
Gas Laws (SAM) (an 8 pp 1 or 2 day activity)Interactive, scaffolded model
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Overview and Learning ObjectivesStudents explore how volume, pressure, temperature and density of gas molecules interrelate. They cover Boyleʹs, Charlesʹs, Gay‐Lussacʹs and Avogadroʹs Laws. They are then are asked to solve a challenge. Students will be able to: • Describe gas pressure as it relates to collisions of molecules on a surface of an object. • Explore the relationship between pressure, volume, temperature, and number of particles as shown in the Ideal Gas Law (PV = nRT). • Describe the relationship between pressure and volume in a gas. (Boyle’s Law) • Describe the effect of varying the temperature on the volume of a gas. (Charles’ Law) • Describe the relationship between temperature and pressure in a gas. (Gay‐Lussac’s Law) • Explain the relationship between the number of particles and volume of a gas as demonstrated by Avogadro’s Law. • Create a model demonstrating why the soda can collapsed and explain the model using the gas laws.  
Classroom PracticeTeacher's Guide: http://sam.concord.org/publications/teacherguides/gas_laws.ver4.pdf  
Central ConceptsKey Concept: The Ideal Gas Law describes the relationship among pressure, temperature, volume and number of gas molecules. It can be expressed by an equation PV=nRT, where P is pressure, V is volume, n is the number of particles, R is a constant and T is temperature. Additional Related ConceptsPhysics/Chemistry
 
Extensions and ConnectionsFermi Lab ARISE Project suggests the following enhancements and extensions: http://www.concord.org/~barbara/SAM/ARISE/ARISE_SAM_gaslaws.pdf  
Activity Creditsusing Molecular Workbench  