Many topics covered in Science... Find Weather, Electricity, and Life Cycles http://www.juliethompson.com/science.html
Interactive Science Activities http://www.bbc.co.uk/schools/revisewise/science/
Storm Information http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwEvent~Storms
Activities and Quizes in Science, Plants, Life Cycles and other living things http://www.bbc.co.uk/schools/ks2bitesize/science/living_things.shtml
Plant Detectives! http://www.urbanext.uiuc.edu/gpe/case1/case1.html
http://esrc2.wappingersschools.org/fury/bfly/Site/Welcome.html
Temperature http://www.brainpop.com/science/energy/temperature/preview.weml