Live-action video footage helps students understand the characteristics of solids. Special attention is given to the properties of crystalline solids and amorphous solids. The video correlates to the Next Generation Science Standard for...

Clear as Glass: A Guide to Crystalline Solids

Crystalline solids consist of substances with their constituents arranged in a precise and organized manner. A wide variety of naturally occurring solid substances can be found in...

A regular pattern of points repeating in an identical way, and often referring to the arrangement of ions or molecules in a crystalline solid.
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A Twig Science
Glossary Film.
Key scientific terms defined in just...

What are the differences between solids, liquids, and gases? In this program students will investigate real-life examples of the various phases of matter. Colorful animations illustrate how these states differ in the movement of...

What the heck is dry ice and why is it so spooky? Learn this and more when we investigate phase changes and phase diagrams!