Learn science by playing with it.

Free interactive simulations, quizzes and predict-and-test challenges for middle and high school (Class/Grade 6โ€“12), mapped to NCERT in India and to NGSS, AP and Common Core in the US. Physics is complete, and Chemistry and Maths have just opened in early access. They work on phones, tablets and computers. No ads, no fees.

โ— Live

Physics

64 hands-on simulations, from projectiles and circuits to the photoelectric effect, with quizzes, 34 predict-and-test challenges and badges.

For teachers

Turn any topic into a live class quiz

Pick topics, put the PIN on the projector, and your class joins from their phones with just a nickname: no student accounts. Timed questions, a leaderboard after each one, and a results sheet you can download. Built from the same questions as the simulations.

All simulations stay free for everyone, always.

Student with a game PIN?

๐ŸŽฎ Join a live quiz

Tell us what to build next

Chemistry and Maths are in early access, with more topics under development. Get an email when new topics launch, and tell us which ones you'd find most useful. Teachers: we especially want to hear from you.

Which subject?

Free for everyone

Every simulation, quiz and challenge. No ads.

Works on any device

Touch-friendly on phones and tablets, and it runs on school networks.

Matches your syllabus

Every topic is mapped to its NCERT chapter, and to NGSS, AP and Common Core in the US.