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Simon Dobbs's Shop

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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.
Graphics for GCSE physics waves topic
simondobbssimondobbs

Graphics for GCSE physics waves topic

(0)
Preparing for a lesson with a student on waves, I was searching for diagrams to illustrate it. The internet is awash with suitable diagrams, but they all seem to be low-resolution bitmaps. Being a vector graphic fanatic, I made some high quality graphics of my own. I offer them in pdf, keynote and powerpoint formats. If you would like the editable svg files, get in touch with me via my web site
SI Wheel
simondobbssimondobbs

SI Wheel

(1)
I have added the new definitions to the SI wheel of units. Possibly for display in your lab.
The pH scale
simondobbssimondobbs

The pH scale

(0)
I made a very simple ‘fill in the gaps’ worksheet. It may be useful because it focuses on the adjectival and noun words in this topic.
Oxidising alcohols
simondobbssimondobbs

Oxidising alcohols

(0)
A straightforward worksheet on the oxidation of alcohols with information on the front, questions, then answers. In black & white for ready photocopying.
Free radical substitution drag & drop
simondobbssimondobbs

Free radical substitution drag & drop

(0)
An alternative to my cut and stick exercise. Double click on the .html file, and it will open in your browser. You can zoom it so it’s huge using the browser zoom controls. Drag the structures to the correct places, then get a reward. Please note: in order to provide a rich interactive experience, my drag & drop 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 frome this hierarchy, the resource will not work.
Energy & electricity word search
simondobbssimondobbs

Energy & electricity word search

(0)
A simple wordsearch on energy & electricity. Word searches help concentrate on scientific literacy and aid concentration. they are good summary activities and for revision. I have tried to make this attractive and efficacious in that it uses only one side of A4.
Hooke's Law simulation
simondobbssimondobbs

Hooke's Law simulation

(0)
A simple simulation of the experiment. Unzip the file. Open the folder. Double click on ‘spring stretch version 4.html’ and it opens in your browser. Add the masses by clicking the buttons, and watch the spring stretch. Use a ruler to measure the extension. (The anomaly on the graph at 3N is probably due to a draught of warm air expanding the spring as a door was opened). Enjoy! A preview is availableon 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
Fuel cell animation
simondobbssimondobbs

Fuel cell animation

(0)
A simple cartoon with half equations. Electrode labels now correct! I have now added positive charges to the hydrogen atom cores/hydrogen ions. The you tube version adds a funky beat.