8.7.1 Gravity

CK12.org Reading (2.1 Gravity in the Solar System, 2.2 Acceleration Due to Gravity)

Simulation #1: http://www.science-animations.com/support-files/freefall.swf

Simulation #2: http://phet.colorado.edu/sims/html/gravity-force-lab/latest/gravity-force-lab_en.html
     Google Drive Graphing

Designing a glass for space: http://www.nytimes.com/2015/09/04/science/space-whisky-glass.html?_r=0