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.

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.

Accessibility features: Caption

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.

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.

Accessibility features: Caption

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.

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.

Accessibility features: Caption

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.

Accessibility features: Caption

Mixing Colors

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

Accessibility features: Caption

Mixing Colors Interactive

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

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.

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.

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.

What Is a Planet?

This video segment, adapted from NOVA scienceNOW, presents the ongoing debate over the definition of a planet, including the status of Pluto.

Accessibility features: Caption