Osmosis in 60 seconds
The definition, what happens at the membrane, and the potato practical, in one minute.
GCSE Biology for AQA and Edexcel, Triple and Combined Science
Revision resources, written by biology teachers.
Clear notes, exam-style practice papers with mark schemes, mind maps, flashcards and short video lessons. Read them here or download them to print.
Choose your GCSE course
Pick your exam board, then Triple (separate) Biology or Combined Science. Every resource follows that specification and shows its spec numbers.
Coming soon: IGCSE, IB MYP, IB Diploma, A-level
Latest resources
AQA GCSE Biology, Cell biology. Read online or download the PDF.
Video lessons
Short lessons that explain one idea at a time. Best on a laptop, desktop or tablet.
What 'denatured' really means
Why enzymes stop working when they get too hot, in 30 seconds.
Want help from a teacher?
One-to-one biology lessons with a qualified teacher, online from anywhere or in person in Dubai.
- Lessons planned around your exam board
- Past-paper practice with feedback
- AQA and Edexcel, Triple and Combined