Independent Variable

What is controlled in an experiment

Example the amount of light

http://sjslifescience.blogspot.com/2010/08/writing-hypotheses-and-identifying.html

http://www.glencoe.com/sec/science/sc_interactions/si2/skill_handbook/psp.shtml

http://scienceprojectideasforkids.com/2011/types-of-variables-2/

Mrs. Averetts Classroom
Practice More

http://nces.ed.gov/nceskids/help/user_guide/graph/variables.asp

http://www.youtube.com/watch?v=x2606GQmDqY

Interactive
http://www.quia.com/pop/184568.html

http://www.quia.com/quiz/162310.html