As part of our polymers topic we decided to make slime from PVA glue and borax. The PVA is a polymer made of long chains. As you gradually add the borax solution the PVA polymer chains begin to form cross-links. This makes the solution thicken and become more viscous. The slime that is made can …
Category archives: Teaching
Electronic lesson planning
For years I have used a paper diary – having trialled a PDA some time ago and moved back to paper. Being a user of technology I decided to look for a better way of planning using technology. First of all I trialled Google Calendar as advocated by Doug Belshaw in his blog. I liked …
New KS3 Science Scheme
With the new slimmed down National Curriculum for Science comes a change in emphasis. Quite wisely the QCA have decided that it is no longer acceptable to just fill children with facts that they will regurgitate in an exam. There has been a change in emphasis from facts to skills. Accompanying the statutory requirements is …