Cambridge IGCSE & A-Level · Physics, Chemistry, Biology, Maths, Computer Science

See it. Solve it. Top the board.

A lab in every lesson, a trainer for every practical paper and XP for every correct answer. For teachers: a ready pack for every lesson and a question bank that prints the test. All free.

867Lessons
164Labs
94Practical trainers
11,116Questions
7Class games
FreeNo paywall
Students

Pick your subject.

Every course covers the whole Cambridge syllabus: a lesson for every point, a lab in every lesson, a question bank and revision notes for every topic.

Or start in the lab →

Physics

Live

Both syllabuses complete, every lesson with an interactive lab and exam-style practice, and practical trainers for every practical paper.

187 lessons · 51 labs · 32 practical trainers

Chemistry

Live

Both syllabuses mapped topic by topic, an interactive 3D lab for every AS and A Level topic, and practical trainers for every practical paper.

189 lessons · 37 labs · 31 practical trainers

Biology

Live

Both syllabuses complete: lessons for every topic of IGCSE 0610 and AS & A Level 9700, an interactive 3D lab for every topic, question banks and revision notes, and practical trainers for every practical paper.

146 lessons · 41 labs · 31 practical trainers

Maths

Live

Every section of IGCSE 0580 and AS & A Level 9709 taught through worked examples you reveal one step at a time, with exam-style questions and six practice problems per lesson. All 25 IGCSE labs are live too.

183 lessons · 25 labs

Computer Science

Live

Algorithms, data, networks and programming you can watch run, step by step: every topic of IGCSE 0478 and AS & A Level 9618 taught in 162 lessons with practice, topic quizzes and revision notes, and 10 labs from binary and logic gates to a Cambridge pseudocode tracer and SQL.

10 labs · 162 lessons

More STEM

Roadmap

Need another Cambridge subject? Tell us which one you need first and we will build it next.

Free, no paywall
Practical papers

Ace the practical papers.

Every Cambridge practical paper in physics, chemistry and biology: hands-on benches where you take the readings yourself, past papers rephrased and worked mark by mark, and set-up builders checked the way an examiner would.

All practical trainers →

Paper 5

IGCSE

Practical Test. Real experiments in the lab: readings, tables, graphs and evaluation.

36 live

Paper 6

IGCSE

Alternative to Practical. The same skills on paper, using readings and diagrams of experiments.

43 live

Paper 3

A-Level

Advanced Practical Skills. Two experiments: measure, tabulate, graph, find constants and evaluate.

36 live

Paper 5

A-Level

Planning, Analysis and Evaluation. Plan an experiment, then analyse data with error bars and uncertainties.

19 live
Teachers' Portal

Teaching? Walk in ready.

Everything on the student side, packaged for the staffroom: lesson packs, schemes of work, an original question bank and a portal that runs your classes. Made by Cambridge teachers, free.

Open the Teachers' Portal →

Lesson packs

867 packs · ten courses

Open the pack for any lesson you teach tomorrow and walk in with everything prepared.

  • A 45-minute lesson plan with timings
  • A printable worksheet with answers
  • A quiz to assign or play as a class game
  • The lab to project, plus a scheme of work per course

Question bankBeta

11,116 original questions

Build a test in minutes from questions written by the TheLucidSTEM team. No past paper question is reproduced.

  • Filter by subject, course, topic, level, command word and paper
  • Multiple-choice and structured questions with marks
  • Switch to a parallel Form B at a tap
  • Print the question paper and the mark scheme

Teacher Portal

Classes · grading · games

Run your class here. Students sign in with a class code and every answer lands in your gradebook.

  • Create a class and share one code
  • Assign auto-graded quizzes from the bank
  • Host seven class games on the projector
  • Track everyone in one gradebook
Simulations

Science that responds to you.

164 full-screen labs you can push, mix and break, one for every physics, chemistry and biology topic, plus maths and computer science.

Browse all simulations →