Math Websites
http://www.math.com/school/subject1/practice/S1U4L2/S1U4L2Pract.html
http://www.math.com/school/subject1/practice/S1U4L3/S1U4L3Pract.html http://aaamath.com/

Science Websites
http://www.susq-town.org/hamsher/all_about_the_microscope.htm

Language Arts Websites
http://www.mrnussbaum.com/