The Earth Is A Giant Magnet
MagnetismDVD - 2004
Understanding Magnetism. See what you can really learn about the visibile force of magnetism. Demonstrates how the Earth is a giant magnet and illustrates the basic principles of magnetism.
Publisher: Venice, CA : TMW Media Group, 
Branch Call Number: DVD J 500 Ear
Characteristics: 1 videodisc (15 min.) : sd., col. ; 4 3/4 in. + 1 teacher's guide.
Alternative Title: Magnetism