Optical Society
Optical Society of America: Exploring the Science of Light: Easy Activities
A collection of simple experiments for exploring the basic properties of light and color.
Physics Classroom
The Physics Classroom: The Law of Reflection
The law of reflection is discussed and explained, accompanied by an animation depicting this law. Includes a list of links to detailed information about certain types of reflections.
Optical Society
Optical Society of America: Optics for Kids: Mirror, Mirror on the Wall
A simple experiment that clearly demonstrates angles of reflection when light hits a mirror. Accompanied by a good explanation of what's happening, and a link to an article on reflection.
CK-12 Foundation
Ck 12: Plix: Wave Interactions: Law of Reflection
[Free Registration/Login Required] Move the light source to see what happens to the reflected ray as you change the angle of the incident ray.
Exploratorium
Exploratorium: Bubbularium
What colors do you see in a bubble? Why do you see colors in a bubble? Use this site to find out the answer to these questions with this easy experiment.
Exploratorium
Exploratorium: Up Periscope!
Children can look around corners with this homemade periscope. Great instructions at this Exploratorium site on how to build a periscope.