PhET: Free online physics, chemistry, biology, earth science and …
Free science and math simulations for teaching STEM topics, including physics, chemistry, biology, and math, from University of Colorado Boulder
Browse - PhET Simulations
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 …
Build an Atom - Atoms - PhET Interactive Simulations
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!
Natural Selection - PhET Interactive Simulations
Natural Selection
States of Matter
States of Matter
States of Matter: Basics
States of Matter: Basics
Circuit Construction Kit: DC - PhET Interactive Simulations
This is an interactive sim. It changes as you play with it.
Diffusion - PhET Interactive Simulations
Explore diffusion with interactive simulations, adjusting variables like concentration and temperature to observe their effects on the process.
Natural Selection
Explore natural selection through interactive simulations, observing how traits influence survival in changing environments.
Forces and Motion: Basics - PhET Interactive Simulations
Forces and Motion: Basics