I made a crazy interactive widget thingy to test key concepts in chemistry, with 50 multiple choice questions. Just click on the correct answer. Instant feedback is given and the widget keeps a tally of the score. 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 key concepts in chemistry interactive quiz.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. Also: The test is aimed at year 11 students, or perhaps early year 12. I added a couple of questions to which they may not know the answers. This could be used as a check to see if they are googling the answers, or perhaps you might allow them to google the answers as an exercise in self-study. I added some rotating structures- just drag to rotate, and little bits of whimsy, because that is how I am.

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.