Principal Sponsors
Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
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| Acid-Base Solutions | Acid-Base Solutions | Run Now |
| Alpha Decay | Alpha Decay | Run Now |
| Arithmetic | Arithmetic | Run Now |
| Atomic Interactions | Atomic Interactions | Run Now |
| Balancing Act | Balancing Act | Run Now |
| Balancing Chemical Equations | Balancing Chemical Equations | Run Now |
| Balloons & Buoyancy | Balloons & Buoyancy | Run Now |
| Balloons and Static Electricity | Balloons and Static Electricity | Run Now |
| Band Structure | Band Structure | Run Now |
| Battery-Resistor Circuit | Battery-Resistor Circuit | Run Now |
| Battery Voltage | Battery Voltage | Run Now |
| Beer's Law Lab | Beer's Law Lab | Run Now |
| Bending Light | Bending Light | Run Now |
| Beta Decay | Beta Decay | Run Now |
| Blackbody Spectrum | Blackbody Spectrum | Run Now |
| Build a Fraction | Build a Fraction | Run Now |
| Build a Molecule | Build a Molecule | Run Now |
| Build an Atom | Build an Atom | Run Now |
| Buoyancy | Buoyancy | Run Now |
| Calculus Grapher | Calculus Grapher | Run Now |
| Capacitor Lab | Capacitor Lab | Run Now |
| Charges and Fields | Charges and Fields | Run Now |
| Circuit Construction Kit (AC+DC) | Circuit Construction Kit (AC+DC) | Run Now |
| Circuit Construction Kit (AC+DC), Virtual Lab | Circuit Construction Kit (AC+DC), Virtual Lab | Run Now |
| Circuit Construction Kit (DC Only) | Circuit Construction Kit (DC Only) | Run Now |
| Circuit Construction Kit (DC Only), Virtual Lab | Circuit Construction Kit (DC Only), Virtual Lab | Run Now |
| Collision Lab | Collision Lab | Run Now |
| Color Vision | Color Vision | Run Now |
| Concentration | Concentration | Run Now |
| Conductivity | Conductivity | Run Now |
| Curve Fitting | Curve Fitting | Run Now |
| Davisson-Germer: Electron Diffraction | Davisson-Germer: Electron Diffraction | Run Now |
| Density | Density | Run Now |
| Double Wells and Covalent Bonds | Double Wells and Covalent Bonds | Run Now |
| Eating & Exercise | Eating & Exercise | Run Now |
| Electric Field Hockey | Electric Field Hockey | Run Now |
| Electric Field of Dreams | Electric Field of Dreams | Run Now |
| Energy Forms and Changes | Energy Forms and Changes | Run Now |
| Energy Skate Park | Energy Skate Park | Run Now |
| Energy Skate Park: Basics | Energy Skate Park: Basics | Run Now |
| Equation Grapher | Equation Grapher | Run Now |
| Estimation | Estimation | Run Now |
| Faraday's Electromagnetic Lab | Faraday's Electromagnetic Lab | Run Now |
| Faraday's Law | Faraday's Law | Run Now |
| Fluid Pressure and Flow | Fluid Pressure and Flow | Run Now |
| Forces and Motion | Forces and Motion | Run Now |
| Forces and Motion: Basics | Forces and Motion: Basics | Run Now |
| Forces in 1 Dimension | Forces in 1 Dimension | Run Now |
| Fourier: Making Waves | Fourier: Making Waves | Run Now |
| Fraction Matcher | Fraction Matcher | Run Now |
| Fractions Intro | Fractions Intro | Run Now |
| Friction | Friction | Run Now |
| Gas Properties | Gas Properties | Run Now |
| Gene Expression - The Basics | Gene Expression - The Basics | Run Now |
| Gene Machine: The Lac Operon | Gene Machine: The Lac Operon | Run Now |
| Generator | Generator | Run Now |
| Geometric Optics | Geometric Optics | Run Now |
| Glaciers | Glaciers | Run Now |
| Graphing Lines | Graphing Lines | Run Now |
| Gravity and Orbits | Gravity and Orbits | Run Now |
| Gravity Force Lab | Gravity Force Lab | Run Now |
| The Greenhouse Effect | The Greenhouse Effect | Run Now |
| Isotopes and Atomic Mass | Isotopes and Atomic Mass | Run Now |
| John Travoltage | John Travoltage | Run Now |
| Ladybug Motion 2D | Ladybug Motion 2D | Run Now |
| Ladybug Revolution | Ladybug Revolution | Run Now |
| Lasers | Lasers | Run Now |
| Lunar Lander | Lunar Lander | Run Now |
| Magnet and Compass | Magnet and Compass | Run Now |
| Magnets and Electromagnets | Magnets and Electromagnets | Run Now |
| Masses & Springs | Masses & Springs | Run Now |
| Maze Game | Maze Game | Run Now |
| Membrane Channels | Membrane Channels | Run Now |
| Microwaves | Microwaves | Run Now |
| Models of the Hydrogen Atom | Models of the Hydrogen Atom | Run Now |
| Molarity | Molarity | Run Now |
| Molecular Motors | Molecular Motors | Run Now |
| Molecule Polarity | Molecule Polarity | Run Now |
| Molecules and Light | Molecules and Light | Run Now |
| Molecule Shapes | Molecule Shapes | Run Now |
| Molecule Shapes: Basics | Molecule Shapes: Basics | Run Now |
| Motion in 2D | Motion in 2D | Run Now |
| The Moving Man | The Moving Man | Run Now |
| My Solar System | My Solar System | Run Now |
| Natural Selection | Natural Selection | Run Now |
| Neon Lights & Other Discharge Lamps | Neon Lights & Other Discharge Lamps | Run Now |
| Neuron | Neuron | Run Now |
| Normal Modes | Normal Modes | Run Now |
| Nuclear Fission | Nuclear Fission | Run Now |
| Ohm's Law | Ohm's Law | Run Now |
| Optical Quantum Control | Optical Quantum Control | Run Now |
| Optical Tweezers and Applications | Optical Tweezers and Applications | Run Now |
| Pendulum Lab | Pendulum Lab | Run Now |
| Photoelectric Effect | Photoelectric Effect | Run Now |
| pH Scale | pH Scale | Run Now |
| Plate Tectonics | Plate Tectonics | Run Now |
| Plinko Probability | Plinko Probability | Run Now |
| Projectile Motion | Projectile Motion | Run Now |
| Quantum Bound States | Quantum Bound States | Run Now |
| Quantum Tunneling and Wave Packets | Quantum Tunneling and Wave Packets | Run Now |
| Quantum Wave Interference | Quantum Wave Interference | Run Now |
| Radiating Charge | Radiating Charge | Run Now |
| Radioactive Dating Game | Radioactive Dating Game | Run Now |
| Radio Waves & Electromagnetic Fields | Radio Waves & Electromagnetic Fields | Run Now |
| The Ramp | The Ramp | Run Now |
| Ramp: Forces and Motion | Ramp: Forces and Motion | Run Now |
| Reactants, Products and Leftovers | Reactants, Products and Leftovers | Run Now |
| Reactions & Rates | Reactions & Rates | Run Now |
| Resistance in a Wire | Resistance in a Wire | Run Now |
| Resonance | Resonance | Run Now |
| Reversible Reactions | Reversible Reactions | Run Now |
| Rutherford Scattering | Rutherford Scattering | Run Now |
| Salts & Solubility | Salts & Solubility | Run Now |
| Self-Driven Particle Model | Self-Driven Particle Model | Run Now |
| Semiconductors | Semiconductors | Run Now |
| Signal Circuit | Signal Circuit | Run Now |
| Simplified MRI | Simplified MRI | Run Now |
| Sound | Sound | Run Now |
| States of Matter | States of Matter | Run Now |
| States of Matter: Basics | States of Matter: Basics | Run Now |
| Stern-Gerlach Experiment | Stern-Gerlach Experiment | Run Now |
| Stretching DNA | Stretching DNA | Run Now |
| Sugar and Salt Solutions | Sugar and Salt Solutions | Run Now |
| Torque | Torque | Run Now |
| Under Pressure | Under Pressure | Run Now |
| Vector Addition | Vector Addition | Run Now |
| Wave Interference | Wave Interference | Run Now |
| Wave on a String | Wave on a String | Run Now |
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