Temperature and DensityLesson 5

Resourceshttp://phet.colorado.edu/en/simul

ation/gas-properties

Alcohol ThermometerObservations:

Explanation:

Galileo’s ThermometerObservations:

Explanation:

cold

hot

Helium BalloonIf you are sad that your helium balloon is starting to sink and wanted the balloon to rise again, would you turn up the heat, or turn on the air conditioner? Explain your answer.

Hand BoilerObservations:

Explanation:

Big Ideas of Lesson 5:As temperature increases density

decreases.◦As temperature increases the speed

of the molecules increase.◦As the speed of the molecules

increase the volume increases.◦As the volume increases the density

decreases (if the mass stays the same).

Water: The Exception to the Rulehttp://

www.youtube.com/watch?v=T4GC

ShGvw-M&safe=active

Why does water expand when it freezes? - Naked Science Scrapbookhttp://www.youtube.com/watch?v=T4GCShGvw-M&safe=active