Amplitude

This interactive activity adapted from the University of Utah's ASPIRE Lab shows how a pendulum's amplitude changes as you set it swinging from different distances from its axis, and how the amplitude of a sound wave changes as you adjust the volume.

Astronomical Images in Different Wavelengths

Visible light is just one portion of the electromagnetic spectrum that a telescope may detect. This collection of images produced for Teachers' Domain features radio wave, infrared, visible light, and X-ray images of distant stars and galaxies as well as images of the telescopes designed to detect the various wavelengths of radiation.

Booming Sands

This video segment, adapted from NOVA scienceNOW, presents basic concepts of physics behind "booming" sand dunes. See how surface tension affects potential and kinetic energy and how it all works together to create sound.

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Carbon Cycle Diagram

This diagram from NASA's Earth Science Enterprise illustrates Earth's carbon cycle.

Chemical Bonds

This interactive activity developed for Teachers' Domain demonstrates how attractive forces between atoms create chemical bonds, resulting in the formation of molecules and compounds.

Collisions on an Air Track

In this interactive activity adapted from the University of Toronto, observe the effect of mass on momentum in elastic and inelastic collisions.

Cooking with Sugar

Find out about the chemistry of candy and how sugar reacts at different temperatures to become fudge, caramel, lollipops, and more in this interactive activity adapted from the Exploratorium.

Counting Neutrons on the Moon

Find out how scientists are using a neutron detector onboard a satellite to try to find water on the Moon in this video adapted from NASA.

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Cow's Eye Dissection

In this interactive activity adapted from the Exploratorium, watch videos of a cow eye dissection and see how an eye works.

Disappearing Milk

A magician pours milk into a glass, but when he turns the glass upside down, nothing comes out. How does he do it? Discover the science behind the "magic" in this video adapted from the American Society of Mechanical Engineers.

Electric Charges Interact

Experiment with electric charges to find out how they interact in this interactive activity adapted from NASA.

Energy in a Roller Coaster Ride

See potential energy convert to kinetic energy in this interactive activity from WGBH that shows a roller coaster in action.

Energy Transfer in a Trebuchet

On NOVA, a team of carpenters, timber framers, engineers, and historians recreate a medieval throwing machine called a trebuchet. This adapted video segment explores how understanding energy transfer informs their design.

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Frequency

In this interactive activity adapted from the University of Utah's ASPIRE Lab, investigate frequency in terms of trampoline jumps, pendulum swings, and electromagnetic waves.

Galileo on the Moon

Watch Apollo 15 astronaut David Scott perform Galileo's falling objects experiment on the Moon in this video segment from NASA.

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Gas Properties

In this interactive simulation adapted from University of Colorado’s Physics Education Technology project, change parameters and discover how the properties of a gas vary in relation to each other.

Geometric Optics

This interactive simulation adapted from the University of Colorado's Physics Education Technology project illustrates how lenses refract light to form images. Manipulate the object, screen, lens, and focal length and observe how the image adjusts.

Geothermal Power

This video segment from Vegas PBS shows the important role geothermal energy systems can play in making a more energy-efficient and greener building.

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Global Warming: Carbon Dioxide and the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE demonstrates the physical property of carbon dioxide that causes the greenhouse effect.

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Heat Transfer

In this interactive activity adapted from the Wisconsin Online Resource Center, learn how heat can be transferred in one of three ways: conduction, convection, and radiation.

Helium Is Boring

In this video adapted from the National Science Center, observe a demonstration to discover how helium gas is inert and hydrogen gas is reactive.

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How Would You Turn a Bolt in Space?

In this fast-paced NASA Brain Bites™ video, an astronaut demonstrates the impact of microgravity on the use of tools in space.

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The Index of Refraction and Snell’s Law

Learn about the index of refraction and Snell's law in this video from the ICT Center.

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Infrared Gallery

How would your world look if you saw heat instead of light? In this interactive resource produced for Teachers' Domain, see what familiar objects look like through an infrared camera and watch infrared videos of geysers, mudpots, and hot springs.

Infrared: More Than Your Eyes Can See

In this video segment adapted from NASA, astronomer Michelle Thaller introduces the world of infrared light and demonstrates how infrared cameras allow us to see more than what the naked eye can perceive.

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Interference and Diffraction

Learn about interference and diffraction in this video from the ICT Center.

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LED and Transmitter Characteristics

Learn about fiber optic transmitters in this video from the ICT Center.

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LIDAR 3D Mapping

See how researchers create 3-D maps of planets by using LIDAR (light detection and ranging) instruments in this video adapted from NASA.

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Mapping Magnetic Fields

This video adapted from NASA explains how a magnetometer determines magnetic fields around planets.

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Masses and Springs

In this interactive simulation adapted from the University of Colorado's Physics Education Technology project, hang various masses from different springs and see the kinetic, potential, and thermal energy of each spring system. You can even slow time or move your demonstration to another planet.

Mixing Colors

Children learn the basics of mixing primary colors in this original animated video.

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Mixing Colors Interactive

Children learn the basics of mixing primary colors in this original interactive.

Momentum

In this interactive activity adapted from Wake Forest University, observe the effect of mass on velocity and momentum in elastic and inelastic collisions.

Ohm's Law

In this interactive simulation of Ohm’s law, adapted from the University of Colorado's Physics Education Technology project, adjust the voltage and resistance in a circuit, and observe how this affects the flow of current.

Periodic Table of the Elements

This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.

Photodetector and Receiver Characteristics

Learn about fiber optic receivers in this video from the ICT Center.

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Projectile Motion

In this interactive simulation adapted from University of Colorado’s Physics Education Technology project, learn about projectile motion by firing various objects from a virtual cannon into the air. Experiment with the settings and try to hit a target.

Radio Waves & Electromagnetic Fields

In this interactive simulation adapted from the University of Colorado's Physics Education Technology project, explore how a radio transmitter broadcasts electromagnetic radiation.

Ringed-Carbon Compounds

In this interactive activity adapted from NOVA, learn about alkaloids and steroids, both examples of compounds with carbon rings. Short videos with interviews, animations, and photographs are featured.

Rotations in Space

Learn about rotational forces by watching astronaut Jeffrey Williams spin objects onboard the International Space Station in this interactive activity adapted from NASA.

A Simple Fiber-Optic Communications System

Learn about rise-time analysis in fiber optic communications systems in this video from the ICT Center.

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A Simple Fiber Numerical Aperture Measurement

Learn about measuring the numerical aperture of an optical fiber in this video from the ICT Center.

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Snowflake Physics

Explore the science behind snowflake formation by examining water molecule structure and other conditions that affect snowflake growth in this interactive activity adapted from SnowCrystals.com.

Solar Power

This video segment from Vegas PBS shows the largest solar power system to date in the U.S. and explains how solar power can serve the needs of large-scale facilities and benefit the environment.

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Sound

This interactive simulation, adapted from the University of Colorado's Physics Education Technology project, illustrates sound waves. Adjust the frequency and amplitude to see and hear how the waves change.

Spectrometry Explained

Find out how light can be used to identify chemical compounds in this interactive activity adapted from NASA.

Torque

In this interactive activity adapted from Wake Forest University, observe how rotational force, or torque, is related to the distance between the pivot and the point of the applied force.

Transforming the Future of Flight

In this video segment adapted from NASA, learn how engineers are transforming the future of flight by designing airplanes based on principles found in nature.

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Vibration Patterns on a Chladni Plate

In this interactive activity adapted from the University of Southern California, investigate how sound vibrations cause patterns to form in sand on a metal plate.

Viewing Gamma Rays

Learn how high-energy gamma rays interact with electrons and discover how astronomers create images from high-energy gamma rays, in this interactive activity adapted from NASA.