- NASA Science for Kids
- NASA provides this site for students. It contains information on many topics related to the elecromagnetic spectrum including wavelengths and different types of waves.
- Optics for Teens
- This site offers career information, online optical illusions, and interactive optics laboratory simulations.
- Edison Invents!
- Thomas Alva Edison invented important light technologies. This site offers information and activities for students to explore his life and achievements.
- Light: A Learning Unit
- Explore the science, technology, math, and history of lighting.