I made a simple worksheet about density. 5 pages. Two of info, one table of values, a page of questions and my answers.
I have now added a keynote and powerpoint version.
An explanation of paper chromatography in a movie, with voiceover. In this animation, the dyes don’t smear, so students can see what is meant to happen, rather than what really does.
I made a series of templates for the main aliphatic reaction mechanisms in OCR chemistry A level. They resemble exam questions where students have to complete the reaction with partial charges, lone pairs and curly arrows. The intention is that they can be printed out by students as often as is required, for practice. A solution is provided for each example.
Included are: nucleophilic substitution, electrophilic addition, nucleophilic addition, radical substitution and elimination.
Exam boards often take unknown substances and ask students to apply their understanding of chemistry to them. To provide practice answering this type of question, I am developing a series of worksheets with this type of question. The series is called “Practicexamquest.”