AQA lenses and ray diagrams
Complete lesson on concave and convex lenses including how to draw lense diagrams and real and virtual images (covers AQA and EDxcel spec)
Electrolysis and formation of products
KS4 chemistry, tackles formation of products from electgrolysis and half equations/oxidation and reduction
Triple chemistry topic 5 lesson bundle
Contains full series of lessons for topic 5 edexcel triple chemistry unit with revision of calculations