I made this diagram of the iconic gas diffusion rate demonstration. Hope it is useful to someone, somewhere.

I made a very simple, very introductory presentation on redox reactions. It is intended to be totally entry level.

Make things move in your class. A little starter illustrating the nitration of benzene. Just open the ‘electrophilic substitution , nitration of benzene copy.html’ file and it will run in your browser. You can zoom in or out using the browser controls. 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. I have also included it as a movie format.

identify the homologous series from the structural formula

A worksheet for writing formulae of ionic compounds. Some explanation on the front, and plenty of examples to do on the back. The knowledge of the structure of ions is crucial to success in chemistry. In black and white for easy photocopying. I have had to completely rework this in affinity publisher due to my own fault, a spelling mistake in quark express (a program which is of no use to me any more) Sorry for anyone who bought it. I know to spell exercise. Really Update: answers also provided and cosmetic improvement. I do hope this is useful to someone.

I made a tiny worksheet on calculating % composition

Double click the particles.html file, and the interactive drag and drop activity will open in your web browser. Drag the picture to the best description, if correct it will stick. Distinguish between pure elements, pure compound and mixtures of both. Good AFL around the board to check understanding of particles. maybe print out solution for revision. 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.

I made a little presentation about working out the number of each atom from the formula. As keynote, powerpoint & pdf versions.

This is a simple worksheet about writing word equations for neutralisation reactions. It covers 2 pages. There are plenty of examples, which get harder as you go on. There is an accompanying powerpoint, as an additional download… NB I am well aware that exam boards, RSC and text books regard acid plus metal to be a redox reaction, which of course it is. However, in such a reaction, the pH increases to neutral and the acid has gone, so I think it can properly be regarded as neutralization of an acid. And since this worksheet is really about naming salts, I had to include it. I removed the spurious reaction of copper metal with dilute acids (woops, senile moment)

NMR examples explained: 2 pentan-3-one

One of the most useful skills in answering many GCSE chemistry questions is to work out what type of reaction is involved in the question. This helps you work out what the products may be, but also answer other questions about the reaction. Students often find this very difficult, mainly due to a lack of practice and experience. This simple information sheet with questions at the back is in black and white so can be readily photocopied.

I have made a simulation of the marble chips and acid experiment at four different concentrations of acid. Just double click on the “gas syringe.html” file and it will open in your web browser. You could use browser zoom controls to make it huge if you wish. Maybe take measurements of volume of gas evolved against time or just use to introduce the experiment or revise. ( the price for this could save your department many times in broken gas syringes.) 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.

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.

A little bit of ‘learning without working’ activity for the end of term, in black and white for easy cheap photocopying. Suitable for all abilities, but earlier years may need to look some clues up. The answers are included.

simple labelling exercise

A very small crossword, with answer key

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.

To save, and give you time.

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…

For AQA GCSE Chemistry.