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The Changing Phases of Matter: Particles in matter

Grade Levels: 3 - 5
Length: 00:00:26
Website: http://www.uen.org/emedia
Usage rights: Download and retain personal copies in perpetuity.

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Even though you can't see them, billions of tiny particles make up this pencil. All matter, even matter you can't see is made up of particles. Tiny particles in the smallest form consist of atoms that are far too small to be seen with the naked eye.

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