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What is Matter?

What is Matter?

Author: Kt Kennedy
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Tutorial

Matter is the Stuff Around You

Chem4Kids has a great summary of matter and the different physical states.
http://www.chem4kids.com/files/matter_intro.html

Source: http://www.chem4kids.com/files/matter_intro.html, ©copyright 1997-2012 Andrew Rader Studios

Matter is made of particles

Matter is made up of particles.  There are three common states of matter: solid, liquid, and gas.  These substances look different macroscopically and the particles behave different microscopically.  Solids have a definite volume and the particles are in a definite shape.  If you could view the particles in a solid microscopically, you would see them vibrating in place.  Liquids have a definite volume, but the particles are in a indefinite shape.  Microscopically, the particles in a liquid can flow.  Gases have an indefinite volume and indefinite shape; both can change.  

States of Matter

See a model of three states of matter; solid, liquid, and gas.

Source: kosasihiskandarsjah on Jan 10, 2008

Physical States of Matter

Learn about the different states of matter and the microscopic and macroscopic differences.

Source: Kathryn Kennedy