PhETs are interactive research-based science and mathematics simulations. They are tested and evaluated for educational effectiveness, which includes student interviews and observation of simulation use in classrooms. The PhETs below have been translated into Krèyol. They are written in Java and can be downloaded and run locally from your computer. Please note that the Java Runtime Engine must be installed on your computer to use these simulations. You can test your system and download the latest version at this Java Runtime verification page. All simulations are open source, and they are free to all students and teachers.

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Bending Light

Charges and Fields

Color Vision


Gravity and Orbits

Molecules and Light

Ohm’s Law

Rutherford Scattering

Under Pressure

Wave on a String

Flash PhETs

Blackbody Spectrum


Collision Lab


Geometric Optics

Masses and Springs

Normal Modes

Pendulum Lab

Projectile Motion

Stern-Gerlach Experiment

Java PhETs

Alpha Decay

Balloons & Buoyancy

Balloons & Static Electricity

Band Structure

Battery Voltage

Beta Decay

Bound States

Capacitor Lab

Circuit Construction Kit AC/DC

Circuit Construction Kit AC/DC Lab

Circuit Construction Kit DC only

Circuit Construction Kit DC Only Lab

Covalent Bonds

Davisson-Germer: Electron Diffraction

Energy Skate Park

Energy Skate Park Basics

Faraday’s Electromagnetic Lab

Faraday’s Law

Fluid Pressure and Flow

Fourier: Making Waves

Gas Properties


Greenhouse Effects

Hyodrogen Atom

Ladybug Revolution


Magnet and Compass

Magnets and Electromagnets


Nuclear Fission

Optical Tweezers

Photoelectric Effect

Quantum Wave Inteference

Radio Waves & Electromagnetic Fields

Radioactive Dating Game

Ramp: Forces & Motion

Reversible Reactions


Simplified MRI


Wave Interference