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

Whacky narrated video showing how to answer the ‘draw a ray diagram to show the formation of an image by a plane mirror’ type question.

I made a whacky film thingy about this.

I made a tiny, simple little interactive animation thingy to illustrate particles in a clunky kind of way. Just the three states of matter. 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 in your web browser… If, however , you move or delete any of the files from this hierarchy, the resource will not work. stdobbs.com ©D&D production

I made a simple Venn diagram to put these into context. Students find this area difficult.

A simple wordsearch.

Every little bit helps.

The clunkiest video ever produced…

A simple wordsearch on a single page. To save you time.

A very simple worksheet. ( I have now removed the duplicated lamp symbol).

I have made a simple information sheet for this important, but much neglected, topic.

A simple summary sheet.

a simple summary

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.

Could be useful at the end of term. Students could then research some scientists of whom they hadn’t heard.

This is quite a challenging wordsearch, although it appears simple. ( I have now included a pdf of 30 atomic structure bingo cards)

I have added the new definitions to the SI wheel of units. Possibly for display in your lab.

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.

I have tried to illustrate the concept of separation of water molecules rather than breaking covalent bonds when water is heated with a quick and dirty animation. Click on the water boiling.html file and it will run in your browser.