A scanned copy of the 1852 publication of Lights and Shadows of African History by Samuel Griswold Goodrich, a nonfiction book for children.

Is that right side of your brain yearning to express its artistic side? This is a project that blends art with science. Learn about light and colorful shadows in these experiments where you mix and match various colors of light to create...

Learn about additive mixtures in this activity. Understand how your rods and cones work together to see color.

This applet helps students visualize the shapes of shadows cast by a cube with a light coming from different angles. This helps students visualize shapes from different angles and to identify, sketch and classify the cross-sections of...