http://www.accuweather.com/en/features/trend/how-salt-melts-ice/5557031
http://glencoe.mheducation.com/sites/dl/free/0078741858/365081/CT01.htmlMore Calculating Density (Adobe shockwave player needs your permission to run)
http://ww2.unime.it/weblab/mirror/ExplrSci/dswmedia/density.htm
http://phet.colorado.edu/sims/density-and-buoyancy/density_en.htmlDissection of a Flower:
http://www.sciencekids.co.nz/gamesactivities/lifecycles.htmlPhotosynthesis and Leaf Structure:
http://www.wonderville.ca/asset/photosynthesisPlaigarism Checker Tool (for research):http://smallseotools.com/plagiarism-checker/