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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.
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.
Pretty Poly(mers)
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Pretty Poly(mers)

(0)
This is a very simple worksheet. Link the name of the polymer to its monomer. Then draw the repeating unit. A drag and drop version may follow. Watch this space.
Free radical substitution cut&stick
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Free radical substitution cut&stick

(0)
An introductory sheet of answers, followed by cut and stick exercise for this challenging mechanism. Cut and stick promotes familiarity with the mechanism, promotes discussion when done in groups, and is enjoyed immensely by sixth formers.
Cut & Stick reaction mechanisms
simondobbssimondobbs

Cut & Stick reaction mechanisms

5 Resources
Sixth formers love cut & stick exercises. They are valuable because they familiarise the student with the mechanism, they promote discussion when done in groups, and are different to taking notes and practical work.
Naming organic substances 1
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Naming organic substances 1

(0)
A simple worksheet on IUPAC nomenclature. A set of simple rules, followed by nine questions (branched chain alkanes and alkenes) over two sides. With separate answers sheet. First of a series.
Neutralisation Reactions presentation
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Neutralisation Reactions presentation

(0)
This is a simple powerpoint presentation outlining how to write word equations for neutralisation reactions. It has plenty of examples and problems. It is allied to my worksheet of the same name, with the same problems for students to try. The answers are at the end of the presentation, for students to mark their own work.
Nucleophilic substitution mechanism cut'n'stick.
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Nucleophilic substitution mechanism cut'n'stick.

(0)
A cut and stick exercise to help reinforce this very important concept. Students cut out the pieces and arrange the pieces to give the correct mechanism. Prepares students for those five mark questions where they often lose marks. Other mechanisms to come plus drag and drop versions, so watch this space…
Hazard warning signs drag & drop-interactive lab safety
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Hazard warning signs drag & drop-interactive lab safety

(0)
Match the hazard warning sign to its description. If correct it sticks. Open the html file by double clicking, et voila. A preview of this activity can be seen on my web site. 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 from this hierarchy, the resource will not work.
The disappearing cross experiment simulation
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The disappearing cross experiment simulation

(0)
I have made a simulation of this experiment at four different temperatures. Double click on the “disappearing cross copy.html” file and there it is in your web browser. Students time the cross disappearing, after someone presses the button and shouts go. Saves a nasty experiment with hot solutions and sulfur dioxide. Use over and over again. You can make it huge by using the browser zoom controls. A preview is available on my web site. Please note: in order to provide a rich interactive experience, my 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.
Rate of reaction simulations
simondobbssimondobbs

Rate of reaction simulations

3 Resources
Disappearing cross plus gas syringe simulations. 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
Effect of pH on amino acids
simondobbssimondobbs

Effect of pH on amino acids

(1)
I made a crazy interactive widget to illustrate the ionic forms of glycine. Just for fun really. 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.
Making bonds
simondobbssimondobbs

Making bonds

(0)
A minute video giving defintions of nucleophile and electrophile. Because I could.
Calculating an enthalpy change.
simondobbssimondobbs

Calculating an enthalpy change.

(0)
I made a crazy cartoon illustrating the calculation of the enthalpy change from bond enthalpies for the reaction between chlorine and hydrogen. Just for fun really. Note: the youtube version is free.
Pretty poly(mers) drag&drop
simondobbssimondobbs

Pretty poly(mers) drag&drop

(0)
Double click on pretty poly(mers).html, and the activity will open in you browser. Simply drag the structure of each monomer to the box next to the name of the polymer. Good AFL around the whiteboard. A paper version is also available. Suitable for GCSE and A level students. 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.