This interactive feature from the NOVA: "Surviving Denali" Web site details the variety of ways the body can fail while climbing a high-altitude peak.

Scientists use image furnaces to grow crystals at very high temperatures. A built-in camera allows them to observe in action a delicate process that is equal parts art and science.

Add different salts to water, then watch them dissolve and achieve a dynamic equilibrium with solid precipitate. Compare the number of ions in solution for highly soluble NaCl to other slightly soluble salts. Relate the charges on ions...

The temperature of the sea, moisture in the air, and high winds all play a role in making a hurricane stronger or weaker. Drag the hurricane over the ocean to see what happens.

A collection of video lectures from a general chemistry class for high school students. Lectures cover topics such as equilibrium, thermochemistry, electrochemistry, and acids and bases with forty-four lectures. Lectures vary in length...

This lesson will introduce young pupils to oceans by looking at the animals, plants and water temperatures for different oceans.