PheT Interactives
"Overview: Simulate the original experiment that proved that electrons can behave as waves. Watch electrons diffract off a crystal of atoms, interfering with themselves to create peaks and troughs of probability. Subject: Physics Level: High School Material T...
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Featured STEM Providers
Pendulum Lab (AR)
"Overview: Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, and the amplitude of the swing. It's easy to measure the perio...
Balloons and Static Electricity (AR)
"Overview: Why does a balloon stick to your sweater? Rub a balloon on a sweater, then let go of the balloon and it flies over and sticks to the sweater. View the charges in the sweater, balloons, and the wall. Subject:...
Molarity
"Overview: What determines the concentration of a solution? Learn about the relationships between moles, liters, and molarity by adjusting the amount of solute and solution volume. Change solutes to compare different che...
Fluid Pressure and Flow
"Overview: Explore pressure in the atmosphere and underwater. Reshape a pipe to see how it changes fluid flow speed. Experiment with a leaky water tower to see how the height and water level determine the water trajector...
Molecule Shapes: Basics
"Overview: Explore molecule shapes by building molecules in 3D! Find out how a molecule's shape changes as you add atoms to a molecule. Subject: Chemistry Level: High School Material Type: Simulation Author: Emily Moore...
Resistance in a Wire
"Overview: Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of...
Beta Decay (AR)
"Overview: Watch beta decay occur for a collection of nuclei or for an individual nucleus. Subject: Physical Science Level: High School, Community College / Lower Division Material Type: Simulation Author: Carl Wieman,...
Estimation (AR)
"Overview: Explore size estimation in one, two and three dimensions! Multiple levels of difficulty allow for progressive skill improvement. Subject: Mathematics Level: Upper Primary, Middle School, High School, Communit...
John Travoltage
"Overview: Make sparks fly with John Travoltage. Wiggle Johnnie's foot and he picks up charges from the carpet. Bring his hand close to the door knob and get rid of the excess charge. Subject: Physics Level: High School...
Number Play
"Overview: Number Play from PhET is a sim for some of our earliest learners and includes multilingual support. This sim can be used to teach topics such as counting, cardinality, grouping, and subitizing. Students will e...
Geometric Optics
"Overview: How does a lens form an image? See how light rays are refracted by a lens. Watch how the image changes when you adjust the focal length of the lens, move the object, move the lens, or move the screen. Subject...
Bending Light
"Overview: Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows....
Balancing Chemical Equations
"Overview: How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas! Subject: Chemistry Level: High School Material Type: Simulation Author: Chris Ma...
Resonance
"Overview: For advanced undergraduate students: Observe resonance in a collection of driven, damped harmonic oscillators. Vary the driving frequency and amplitude, the damping constant, and the mass and spring constant o...
Stretching DNA
"Overview: Explore stretching just a single strand of DNA using optical tweezers or fluid flow. Experiment with the forces involved and measure the relationship between the stretched DNA length and the force required to...
Gravity Force Lab
"Overview: Visualize the gravitational force that two objects exert on each other. Change properties of the objects in order to see how it changes the gravity force. Subject: Physics Level: High School Material Type: Si...
Fourier: Making Waves
"Overview: Learn how to make waves of all different shapes by adding up sines or cosines. Make waves in space and time and measure their wavelengths and periods. See how changing the amplitudes of different harmonics cha...
Isotopes and Atomic Mass (AR)
"Overview: Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element. Subject: Chemistry Leve...
Equality Explorer
"Overview: Explore what it means for a mathematical statement to be balanced or unbalanced by interacting with objects on a balance. Discover the rules for keeping it balanced. Collect stars by playing the game! Subject...
Reversible Reactions (AR)
"Overview: Watch a reaction proceed over time. How does total energy affect a reaction rate? Vary temperature, barrier height, and potential energies. Record concentrations and time in order to extract rate coefficients....