Here is a large collection of simple science class activities for understanding the physics of light.

This illustrated essay from the NOVA Web site explains why the atomic structure of a diamond slows down light and produces a sparkle more brilliant than from any other colorless substance.

Kids learn about the behavior of light as a wave in the science of physics including reflection, refraction, and diffraction.

In this activity, you will make a glass object disappear by eliminating the reflection from and the refraction by the glass object.

In this direct instruction instructional activity, students draw sketches in their science notebooks in order to make sense of wave properties. Resources include a slideshow presentation on the properties of waves and multiple examples...

An investigation into the total internal reflection of light, using a laser pointer. Accompanied by an explanation of what's happening, a discussion of Snell's Law, and links to additional information.

This experiment demonstrates the concept of total internal reflection, using basic materials. Accompanied by a detailed explanation of what's happening, and links to articles on reflection and refraction.