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
Build an Atom - Atoms | Atomic Structure | Isotope Symbols
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!
States of Matter - PhET Interactive Simulations
States of Matter - PhET Interactive Simulations
My Account - PhET Interactive 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 are always right at your fingertips.Become part of our mission today, and transform the learning experiences of students everywhere!
Circuit Construction Kit: DC - PhET Interactive Simulations
Build and test circuits with batteries, resistors, light bulbs, and switches. Learn about series and parallel circuits, Ohm's law, and conductors and insulators.
My Solar System - PhET Interactive Simulations
Explore the solar system with interactive simulations and learn about the movement of planetary objects.
Activities - PhET Interactive Simulations
Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education <a {{0}}>research</a> and engage students through an intuitive, game-like environment where students learn through exploration and discovery.
Gravity and Orbits - PhET Interactive Simulations
Explore gravity and orbits with interactive simulations.
Natural Selection - PhET Interactive Simulations
Explore natural selection by observing how different traits affect organisms' survival in various environments.
Circuit Construction Kit: DC - PhET Interactive Simulations
Experiment with an electronics kit! Build circuits with batteries, resistors, ideal and non-Ohmic light bulbs, fuses, and switches. Determine if everyday objects are conductors or insulators, and take measurements with an ammeter and voltmeter. View the circuit as a schematic diagram, or switch to a lifelike view.