PhET Interactive Simulations

Explore free, research-based science and math simulations from the University of Colorado Boulder. Engage with interactive models that bring abstract concepts to life.

31+
Simulations
5
Categories
100%
Free
Visit PhET.Colorado.eduBrowse Simulations

Interactive Learning

Engage with simulations that respond to your inputs in real-time

Visual Concepts

See abstract scientific principles come to life through visualization

Research-Based

Built on extensive education research from University of Colorado

Mathematics

Algebra Basics

Balancing Chemical Equations

Grade Level: High School

algebraequationschemistry

Expression Exchange

Grade Level: Middle School / High School

algebraexpressionsequations

Linear Equations

Graphing Lines

Grade Level: Middle School / High School

linearslopegraphing

Quadratic Equations

Graphing Quadratics

Grade Level: High School

quadraticparabolagraphing

Geometry

Area Builder

Grade Level: Elementary / Middle School

areaperimetergeometry

Area Model Algebra

Grade Level: Middle School / High School

algebraareamultiplication

Trigonometry

Trig Tour

Grade Level: High School

trigonometryunit circlesinecosine

Fractions

Fractions: Intro

Grade Level: Elementary / Middle School

fractionsarithmeticdivision

Fractions: Equality

Grade Level: Elementary / Middle School

fractionsequivalencecomparison

Calculus

Calculus Grapher

Grade Level: High School / University

calculusderivativesgraphing

Vectors

Vector Addition

Grade Level: High School / University

vectorsadditioncomponents

Probability

Plinko Probability

Grade Level: High School / University

probabilitystatisticsdistribution

Physics

Newton's Laws

Forces and Motion: Basics

Grade Level: Middle School / High School

forcemotionnewton

Energy & Work

Energy Skate Park

Grade Level: Middle School / High School

energyconservationwork

Projectile Motion

Projectile Motion

Grade Level: High School / University

physicsmotiontrajectoryvelocity

Waves & Optics

Waves Intro

Grade Level: Middle School / High School

wavesfrequencyamplitude

Bending Light

Grade Level: Middle School / High School

opticsrefractionlight

Electricity & Magnetism

Circuit Construction Kit: DC

Grade Level: Middle School / High School

circuitselectricityvoltagecurrent

Faraday's Law

Grade Level: High School / University

magnetisminductionelectromagnetic

Ohm's Law

Grade Level: Middle School / High School

electricityresistancevoltagecurrent

Sound

Sound

Grade Level: Middle School / High School

soundwavesfrequency

Astronomy

Gravity and Orbits

Grade Level: Middle School / High School

astronomygravityorbitsplanets

Chemistry

Atomic Structure

Build an Atom

Grade Level: Middle School / High School

atomprotonselectronsperiodic table

Chemical Reactions

Reactants, Products and Leftovers

Grade Level: Middle School / High School

chemistryreactionsstoichiometry

pH Scale

Grade Level: Middle School / High School

chemistryacidsbasesph

States of Matter

States of Matter

Grade Level: Middle School / High School

matterphasetemperaturepressure

Gas Properties

Grade Level: High School / University

gaspressurevolumetemperature

Biology

Photosynthesis

Photosynthesis

Grade Level: Middle School / High School

photosynthesisbiologyenergy

Natural Selection

Natural Selection

Grade Level: Middle School / High School

biologyevolutiongenetics

Molecules & Cells

Gene Expression Essentials

Grade Level: High School / University

biologydnarnaprotein

Earth Science

Plate Tectonics

Plate Tectonics

Grade Level: Middle School / High School

geologyearth scienceplates

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