FOSS’s website:
http://www.fossweb.com/modulesK-2/
Has a balance and motion module with movies, links, “ask a scientist,” and a roller coaster game/simulation.

“Balancing Frogs” game: http://www.sofweb.vic.edu.au/steps/students/5%2D6years/machines/frogs.htm
Requires “Shockwave”

Exploratorium Snacks
http://www.exploratorium.edu/snacks/balancing_stick.html
• Stick balancing activity

http://www.exploratorium.edu/snacks/center_of_gravity.html
• Center of gravity activity

http://www.exploratorium.edu/snacks/downhill_race.html
• Rolling cylinder activity

Simple machines site:
http://www.edheads.org/activities/simple-machines/
• Engaging quizzes/animations about simple machines

Mobile site:
http://www.calder.org/
• photographs and information about Alexander Calder