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Simon Dobbs's Shop

Average Rating4.72
(based on 34 reviews)

I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.

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I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.
Limestone cycle
simondobbssimondobbs

Limestone cycle

(0)
A very simple Drag and Drop resource to reinforce the limestone cycle. Double click on the html file.
Mineral acids
simondobbssimondobbs

Mineral acids

(0)
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.
Matching the structures.
simondobbssimondobbs

Matching the structures.

(0)
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!
Science wordscape
simondobbssimondobbs

Science wordscape

(0)
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.
Zinc electrode
simondobbssimondobbs

Zinc electrode

(0)
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"
NMR examples explained: comparing two esters.
simondobbssimondobbs

NMR examples explained: comparing two esters.

(0)
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)
An atom anatomy
simondobbssimondobbs

An atom anatomy

(0)
I made a simple display of the atomic structure of various isotopes, with the emphasis on simplicity and clarity. Just because I wanted to. I also included it as keynote and powerpoint presentations.
Phenolphthalein
simondobbssimondobbs

Phenolphthalein

(0)
I made an little interactive widget thingy about the coloured forms of this indicator. It can be seen on my web site. 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. ©D&D production
Rate of hydrolysis of haloalkanes
simondobbssimondobbs

Rate of hydrolysis of haloalkanes

(0)
I made a crazy interactive slide show widget thingy on this topic. 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.
Graph of boiling points of hydrides.
simondobbssimondobbs

Graph of boiling points of hydrides.

(0)
The traditional textbook graph of this data is very confused. I feel that my presentation of the data emphasizes the role played by hydrogen bonding more clearly. The influence of atomic size on boiling point is also clearly shown by the bp of the noble gases.