Acids and Bases: Cabbage Juice Indicator

In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.

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Acids and Bases: Making a Film Canister Rocket

In this video segment, ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket.

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Acids and Bases: Testing Rocket Cars

In this ZOOM video segment, cast members make bottle rocket cars using lemon juice and baking soda, and experiment with different ways of launching the cars.

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Acids and Bases: Testing Rockets

What happens when you mix baking soda and lemon juice? Watch the ZOOM cast launch a rocket using kitchen chemistry.

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Atomic Structure of an Alloy

Learn about the atomic structure of bronze, a copper alloy, in this video excerpt from NOVA: "Hunting the Elements."

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Balloon Brain: Designing a Helmet

In this video segment adapted from ZOOM, cast members are challenged to design protective headgear for a water balloon using what they know about the properties of the materials available.

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Cooking Cookies with Solar Power

In this video segment adapted from ZOOM, two solar cookers are tested against a control to see which can cook a "s'more" faster.

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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.

Design: Building a House

This collection of images follows the process of building a house from cutting the trees and making the bricks to finishing construction.

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.

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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Mystery Mud: Exploring Changes in States of Matter

Join a group of middle-school students on a visit to a laboratory at the Massachusetts Institute of Technology, where they experiment with "mystery mud" and learn about the relationships between magnetism, particle motion, and changes in the state of matter.

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NOVA Elements

Explore the periodic table, and build atoms and molecules in this web edition of the NOVA Elements iPad App.

Observe, Make, Measure

There are many ways to get information in the world. This collection of still images features tools that help us observe, make, and measure things.

States of Matter

This video segment from IdahoPTV's D4K explains and gives examples of the 4 states of matter: solid, liquid, gas, and plasma.

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Testing Insulators: Ice Cube in a Box

Watch the ZOOM cast discover which insulator -- newspaper or aluminum foil -- is better at keeping an ice cube frozen longer.

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Using a Compass to Find Your Way

Kelsey and Ryan show how to use a compass as they race through their orienteering course in this video segment from ZOOM.

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Using Salt to Melt Ice

How can you pick up an ice cube with a string? Watch this video segment adapted from ZOOM to see how salt can help.

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The Value of Copper

This video excerpt from NOVA: "Hunting the Elements" examines copper's many uses and how its price is an economic indicator.

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What's the Matter?

Young children learn about states of matter and the differences among solids, liquids, and gases.