Because I wanted to

I have made a little interactive cartoon thingy to reinforce or introduce the two types of bond fission, heterolysis and homolysis. Just click on the bond fission html file and it opens in your browser. You can make it huge using the browser zoom controls. 19.9.19- apologies the file previously uploaded was done in error. It should now work Please note: in order to provide a rich interactive experience, my interactive resources are mini-web sites local to your computer. After unzipping, they comprise a folder containing the main .html file and another folder containing the graphic resources and my coding to make the resource work. Double click on the .html file and the resource will work. If, however , you move or delete any of the files from this hierarchy, the resource will not work. stdobbs.com ©D&D production

I made a presentation illustrating the structure of the amino acids

Just practice at recognising types of chemical species.

I made a simple summary sheet as a revision resource. It aims briefly to summarise the benzene evidence.

Just for fun

A very simple Drag and Drop resource to reinforce the limestone cycle. Double click on the html file.

I have made a very simple information sheet about forming mineral acids, for display or handout. Very few students are aware of this bit of basic chemistry, so I think it is worthwhile.

Could be useful at the end of term. Students could then research some scientists of whom they hadn’t heard.

A simple cut & match activity which is really just practice at naming and recognising structures and their representations. I made this because I enjoy doing this sort of thing!

I have made a simple information sheet for this important, but much neglected, topic.

I got my gel pens out, and by request, cobbled together a hydrolytic lock & key cartoon. Its worse even than the associative one.

The clunkiest video ever produced…

My extremely tacky public information film.

Match the definition to the word. Words taken for AQA GCSE science ‘how science works’ Please note: this can be printed on two sides of the same sheet, because the definitions are on the same side- no need to keep turning over. Update: I have now included a simple presentation with the definitions.

I made a tiny cartoon to contrast the action of a zinc electrode as an electrochemical cell or as in electrolysis. Double click on 'zinc electrode.html"

Just because I wanted to. (NB got rid of the aberrant apostrophe)

I made a wacky cartoon thingy about this mechanism

I came across an exam question which asked the student to identify an ester from two apparently very similar structures and a proton NMR spectrum. This is my attempt to explain the spectra pictorially. I will bundle it with my other ‘NMR examples explained’ series. (NB, I used spectra from a database. The original question shows an expansion of the multiplet peak due to methyl groups as a heptet, ie seven peaks, due to six protons, although this appears to be simulated. The methyl groups appear to be chemically equivalent to me so the multiplet should be a quartet, due to three protons, but I cannot tell from the database spectra. I have stuck with the exam board interpretation and mark scheme. The question is OCR A F324 Wednesday 27 January 2010 question 4)

A tiny sheet where the student fills in the name of the reaction and the required reagents in the boxes. Start of a series. Covers reactions in OCR B.