Additional resources

• A set of molecular models that can be rotated http://www.creative-chemistry.org.uk/ molecules/ [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (accessed 21 May 2014)
• Information on practical activities to help teach chemical concepts: http://www.nuffieldfoundation.org/ practical-chemistry (accessed 21 May 2014)
• The ECLIPSE project has examples of students’ ideas about chemical concepts: http://www.educ.cam.ac.uk/ research/ projects/ eclipse/ (accessed 21 May 2014)
• Videos of preparation, properties and reactions: http://www.nationalstemcentre.org.uk/elibrary/ resource/4592/chemistry-captured-video-materials-for-teachers-of-chemistryand http://www.nationalstemcentre.org.uk/ elibrary/ resource/ 4910/ chemistry-captured-ii-video-materials-for-teachers-of-chemistry (both accessed 21 May 2014)
• Plastics and covalent chemical bonds: https://blossoms.mit.edu/videos/lessons/plastics_and_ covalent_chemical_bonds (accessed 21 May 2014)