PhET has a new Logo, so what does that mean?

Is PhET still free to use? Yes, but you can always make donations or encourage others.

Have you been following our progress on creating next-generation PhET sims? These new simulations update our designs to work with touch or mouse interaction, and they are built on a new HTML5 code base, meaning that they run seamlessly on all of today’s classroom technologies from PCs, to tablets (iPads or Android-based), to Chromebooks. Hats off to our amazing software development team for their work to push the boundaries of HTML5 technology. To access the new sims, visit

Is PhET still “research-based? A teacher survey of over 2,000 teachers in the US, 63% said that PhET simulations made their teaching more effective and 23% said much more effective. We are holding a summit to identify what features the new Html5 sims need to help both groups. Also, PhET researchers continue to work and publish findings for sim design and best practices.

coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> style='position:absolute;margin-left:0;margin-top:88.5pt;width:106.5pt; height:70.5pt;z-index:251658240;mso-wrap-distance-left:9pt; mso-wrap-distance-top:0;mso-wrap-distance-right:9pt; mso-wrap-distance-bottom:0;mso-position-horizontal:left; mso-position-horizontal-relative:text;mso-position-vertical-relative:line' o:allowoverlap="f"> o:title="image002.png@01CF2681"/>

How do you keep up with PhET evolution? Read our blog Watch for new pages on the PhET website hosting videos and more resources on best ways to use PhET. Join us on Facebook   |  Follow us on Twitter    |  Subscribe to our quarterly newsletter