Text Options for the Visually Impaired Font Size: a- A+ Color: A A A Revert 
Close vision bar
Open vision bar
Electromagnetic Spectrum Websites

http://www.ducksters.com/science/physics/types_of_electromagnetic_waves.php

https://imagine.gsfc.nasa.gov/science/toolbox/emspectrum1.html

 

* Visible Light = Light 

Contact Us
Lancaster City School District345 East Mulberry Street
Lancaster, OH 43130