This animation from NASA visualizes the steps of the water cycle, including precipitation, evaporation, transpiration, and condensation. [0:52]

Someone is stealing Chirp's water! Who would do such a sneaky thing? Join Peep and the gang to find out why the water is disappearing. [8:53]

There is quite a bit of useful information packed into this little film. Discover how our oceans affect the carbon dioxide in the atmosphere as our climate is rapidly changing. [2:30]

ZOOM cast members use a homemade solar still to mimic the water cycle, separating pure water from a saltwater mixture. [3:34]

The concept of specific heat capacity and the heat of fusion are both reviewed in this video. [14:49]

Learn to make a very impressive cloud form in a plastic bottle! By pumping air into an empty plastic bottle and quickly releasing the pressure, we can cool off the air and force the water to condense into a thick cloud. It's a very...

Understand vapor pressure, volatility, and evaporation. [18:04]

Watch a class discusses their ideas about evaporation and condensation. [9:45]

In this video, a teacher demonstrates heating water in a beaker. [3:16]

A video poem describing the path water takes as it travels through water cycle as it evaporates, condenses and turns into precipitation. [1:50]

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 3 of 4 in the series titled "Boiling, Freezing, Melting Point."

Researchers studying nanoscale structures have found materials that assemble themselves into spirals, capable of holding tightly to each other or to materials in their center.