Is There Gravity in Space? Retrieved from
http://www.qrg.northwestern.edu/projects/vss/docs/space-environment/1-is-there-gravity-in-space.html
Michigan Department of Education. (2006, October). High School Content Expectations: Science. Retrieved from http://www.michigan.gov/documents/Physics_HSCE__168208_7.pdf
Michigan Department of Education. (2011, October). K-7 Complete GLCE Science Documents v.1.09. Retrieved from http://www.michigan.gov/documents/mde/Complete_Science_GLCE_12-12-07_218314_7.pdf
Myths vs. Reality: Gravity. Retrieved from
http://amazing-space.stsci.edu/resources/myths/gravity.php.p=Teaching+tools%40%2Ceds%2Ctools%2C%3EGravity%40%2Ceds%2Ctools%2Ctopic%2Cgravity.php%3EOverview%3A+Gravity+myths%40%2Ceds%2Coverviews%2Cmyths%2Cgravity.php&a=%2Ceds
Nettuno82 (2007, August). Man Jumping on the Moon. Retried from http://www.youtube.com/watch?v=Zsl2BvTIjYc
Pablico, J. R. (2010, August). Misconceptions On Force and Gravity Among High School Students. Retrieved from http://etd.lsu.edu/docs/available/etd-07082010-104436/unrestricted/PablicoThesis.pdf
Srivatsan, S. (2005). Weightless in Space. Retrieved from http://www.bucconeer.worldcon.org/contest/05s_msf2.htm
Whitlock, Dr. Laura A. (2001, February). Star Child Questions of the Month for February 2001. Retrieved from http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question30.html
http://www.qrg.northwestern.edu/projects/vss/docs/space-environment/1-is-there-gravity-in-space.html
Michigan Department of Education. (2006, October). High School Content Expectations: Science. Retrieved from http://www.michigan.gov/documents/Physics_HSCE__168208_7.pdf
Michigan Department of Education. (2011, October). K-7 Complete GLCE Science Documents v.1.09. Retrieved from http://www.michigan.gov/documents/mde/Complete_Science_GLCE_12-12-07_218314_7.pdf
Myths vs. Reality: Gravity. Retrieved from
http://amazing-space.stsci.edu/resources/myths/gravity.php.p=Teaching+tools%40%2Ceds%2Ctools%2C%3EGravity%40%2Ceds%2Ctools%2Ctopic%2Cgravity.php%3EOverview%3A+Gravity+myths%40%2Ceds%2Coverviews%2Cmyths%2Cgravity.php&a=%2Ceds
Nettuno82 (2007, August). Man Jumping on the Moon. Retried from http://www.youtube.com/watch?v=Zsl2BvTIjYc
Pablico, J. R. (2010, August). Misconceptions On Force and Gravity Among High School Students. Retrieved from http://etd.lsu.edu/docs/available/etd-07082010-104436/unrestricted/PablicoThesis.pdf
Srivatsan, S. (2005). Weightless in Space. Retrieved from http://www.bucconeer.worldcon.org/contest/05s_msf2.htm
Whitlock, Dr. Laura A. (2001, February). Star Child Questions of the Month for February 2001. Retrieved from http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question30.html