Matter
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks3/science/changing_matter/changingmatter.swf
http://www.glencoe.com/sites/common_assets/science/virtual_labs/E17/E17.html
http://www.bbc.co.uk/schools/scienceclips/ages/10_11/rev_irrev_changes_fs.shtml
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks3/science/changing_matter/changingmatter.swf
http://www.harcourtschool.com/activity/states_of_matter/molecules.swf
http://www.glencoe.com/sites/common_assets/science/virtual_labs/E17/E17.html
http://www.bbc.co.uk/schools/scienceclips/ages/10_11/rev_irrev_changes_fs.shtml
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks3/science/changing_matter/changingmatter.swf
http://www.harcourtschool.com/activity/states_of_matter/molecules.swf
atoms
http://www.glencoe.com/sites/common_assets/science/virtual_labs/E20/E20.html
http://phet.colorado.edu/en/simulation/build-an-atom
http://www.learningscience.org/psc3astructureofatoms.htm
http://phet.colorado.edu/en/simulation/build-an-atom
http://www.learningscience.org/psc3astructureofatoms.htm