Your browser is missing features required to run our HTML5 simulations. Internet Explorer 9+ or recent versions of Firefox, Chrome and Safari are recommended.
Be an HTML5 Hero!
By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims are always right at your fingertips.
Become part of our mission today, and transform the learning experiences of students everywhere!
PhET for Every Classroom