Penn State Electro-Optics Center
Additional Resources for Challenge Introduction
Additional Resources
Script for the challenge introduction video
Hiking safety - most national parks and many state parks have information on their web sites about hiking safety. For example,
http://www.dcnr.state.pa.us/stateparks/hike/hikeinfo.aspx
Two of many resources on the electromagnetic spectrum, for students of all ages
http://science.hq.nasa.gov/kids/imagers/ems/ems.html
http://hyperphysics.phy-astr.gsu.edu/hbase/ems1.html