Presentation covers the whole of Orghanic chemistry for GCSE/IGCSE. Fractional distillation, Alkanes, alkenes, cracking, alcohols, addition reactions, polymers etc. Clear slides with humour too!

All you need to teach momentum and impulse to IGCSE, GCSE, A level and IB. Presentation with suggestions for practicals, worked examples, a cool video and worksheets. Great value for money!!

Everything you need for IGCSE/GCSE radioactivity. In the half life activity (Nihalinitis) you need to change the city to your own city and pick a student in your class for the symptoms! (I have a boy in my class whose name is like Nihalin) who has the symptoms displayed. It's meant to be light-hearted - he didn't mind! (For example you might have a boy named Gary in your class who is football obsessed and who like Justin Bieber - in which case the disease would be called "Garyitis" and the symptoms would include an obsession for football and Justin Bieber). You'll get the idea when you see the activity which uses spreadsheets to model radioactive decay.

Converging lenses, principal focus etc and drawing ray diagrams to find the position of images. Also includes a practical activity before the ray diagrams so students can see what the results actually mean. I have a running joke in my class about not liking dogs hence the questions on the worksheet. Please fell free to edit!!

Introduction to waves at GCSE/A level. This starts with an activity where they write a poem (!) to pre-assess words they already know. The PowerPoint then introduces the different measurements of a wave (frequency, amplitude etc) before introducing the wave equation (speed = frequency x wavelength) and a worksheet that uses the equation. It is handy to demonstrate the different types of waves (sound, light, slinky and even a Mexican wave in the class!)

This presentation is to accompany and explain the "standard" demos for this topic. i.e. ball and ring, breaking bar, liquid in flask with tube (thermometer), gas trapped in flask and tube etc. This is then followed by a worksheet where they have to describe various uses problems with expansion/contraction in everyday situations.

Presentation plus latent heat question sheet. The practical referred to in the presentation is the cooling of molten wax in hot water. I like to put the wax in a boiling tube in the beaker of hot water and take the temperature of the wax and the water as they cool to emphasise that the wax stops cooling when it reaches its melting point. This then leads into a discussion of latent heat followed by example calculations etc.

Lesson PowerPoint, worksheet and practical sheet. Written for IGCSE but suitable for GCSE and even A level. In the practical they can compare their results with the actual results and discuss why their results for the SHC is larger than the accepted value.

Lesson PowerPoint and worksheet on the difference between evaporation and boiling and the factors which affect the rate of evaporation.

Suitable for KS3 and KS4. PowerPoint presentation with worksheets on using the formula for GPE and KE. I have a running joke in my lessons about my dislike of dogs - hence the dog falling from the aeroplane! Please feel free to change for a cat/politician/Biology teacher.........

Set of 4 straightforward worksheets with notes and questions testing their understanding of conduction, convection and radiation. Best done after the "standard" demonstrations. The "Convection stops!" worksheet is a "What if....?" scenario where students have to think about what would happen if convection didn't happen and fill in a mock newspaper front page. This could be adapted for conduction and radiation too.

Useful for KS3 or KS4. Includes a nice exercise using the final bobsleigh run from "Cool Runnings" which is available on YouTube.

This could be used at KS3, 4 or even 5 level. A fun practical using multimeters and pencil lines to measure the relationship between resistance and length.

The "True of false" opening activity is a great way to assess their understanding before the lesson starts. Emphasise throughout the lesson that gravity is a force between ALL objects (many students have been taught lower down the school that gravity is only what pulls them to the earth). The work sheet should give a good assessment of the understanding of the lesson. The last two questions will really stretch their (and maybe their teacher's!) understanding.

I used this as a competition whilst working at a school in Peru/ Can be used as an introduction to writing a scientific method or just as a fun little competition at the end of term etc. Students have to do exactly what the instructions say using a piece of paper.

End of topic summary sheet to stick in their books. Useful for examination revision too. Could be used for them to write their own worksheets etc. Contains a 'party' analogy which I have found useful in explaining rates and collision theory.

Students have to convert the 8 sentences into diagrams

I use this technique a lot. Students have to convert the 8 sentences into diagrams - hence "Draw the sentence". This is a great assessment exercise and is linked to my TES article at http://www.tes.co.uk/article.aspx?storycode=6112077 This is an easier one as both have equal but opposite charge - slightly harder examples have also been uploaded.

Straightforward question sheet for use in class or as homework to re-cap work covered when studying the periodic table. Useful revision exercise.

To be used as a useful summary after students have looked at the speed of sound in different substance. The multiple-choice format is useful for those of you preparing for these style exams (Cambridge IGCSE). The 'write your own' multiple choice questions at the end are surprisingly difficult to do, and are an excellent link to sentence structure/grammar etc.