Walter Fendt
Walter Fendt: Reflection and Refraction of Light
Defines the refraction of light and provides an applet for investigating it.
Georgia State University
Georgia State University: Hyper Physics: Lens Maker's Formula
A discussion of the lens-maker's formula and its use in determining the effect of lens shape and index of refraction upon the magnifying power of a lens. Includes an interactive problem-solving section.
Science Buddies
Science Buddies: Project Ideas: Bitter to Sweet: Sugar Changes in Ripening Fruit
In this science fair project, use a refractometer to measure changes in sugar content in ripening fruit. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a...
Optical Society
Optical Society of America: Optics for Kids: Total Internal Reflection
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.