Science
Video for Balancing Chemical Equations
video.about.com/chemistry/How-to-Balance-Chemistry-Equations.htm
Click here for the answers to sheet # 1 chemistry.about.com/library/formulabalanceanswer.pdf
Click here for the answers to sheet # 2 chemistry.about.com/library/formulabalance2answers.pdf
Click here for the answers to sheet # 3 chemistry.about.com/library/formulabalance3answers.pdf
Click here for the answers to sheet # 4 chemistry.about.com/library/pdfs/worksheets/formulabalance4key.pdf