What is PhET Simulations?
PhET Interactive Simulations is a project of the University of Colorado Boulder that makes playful, research-based simulations for physics, chemistry, biology, earth science and math. You can build circuits, launch projectiles, balance chemical equations or explore fractions by dragging things around.
The simulations run in HTML5 in any modern browser, including tablets and Chromebooks. They are free to use in class or at home without signing up, and many come with teacher-made activities.
Key features
- Over 100 simulations across science and math
- Runs in the browser on desktops, tablets and Chromebooks
- Translated into 100+ languages
- Free teacher activities and lesson ideas
Pros
- Makes abstract ideas visible and hands-on
- Built and tested with real students
- No account, no ads
Cons
- A few older simulations still need Java or Flash
- Activities are aimed mostly at teachers
Best for
Ratings and reviews
No reviews yet. Used it? Be the first to rate it.
PhET Simulations FAQ
Is PhET Simulations free?
PhET is free for everyone. It is funded by grants and donations and works without an account.
Do I need an account to use PhET Simulations?
No. PhET Simulations works without signing up, so you can open phet.colorado.edu and start using it right away.
What are some alternatives to PhET Simulations?
Similar free tools that also work without an account include Desmos, GeoGebra, Wolfram Alpha, Khan Academy, Purdue OWL and ZoteroBib.