Natural Unit 5 Forces. Natural sc 4

Unit 5 Forces

https://www.nde-ed.org/EducationResources/HighSchool/Magnetism/twoends.htm

http://video.nationalgeographic.com/video/i-didnt-know-that/idkt-magnets-computers?source=relatedvideo  Can Magnets harm computers?

http://www.sciencewiz.com/display_vid.php/video=iron.mp4&title=Do%20ALL%20metals%20stick%20to%20magnets?