Matter is everything. Matter can be anything made of molecules and atoms. Matter also needs to have mass It can be that chair or water. Matter has 5 different stages. They are solid, liquid, gas. plasma. Mass also has physical and chemical changes to it. An example of a chemical change would be water changing into hydrogen peroxide. A physical change would be water turning into ice. Matter also has physical and chemical properties. An example of a physical property would be density. Density is the mass of a substance per unit volume. The chemical properties can only be observed by changing the identity of a substance.
Thursday, January 17, 2008
Matter
Matter is everything. Matter can be anything made of molecules and atoms. Matter also needs to have mass It can be that chair or water. Matter has 5 different stages. They are solid, liquid, gas. plasma. Mass also has physical and chemical changes to it. An example of a chemical change would be water changing into hydrogen peroxide. A physical change would be water turning into ice. Matter also has physical and chemical properties. An example of a physical property would be density. Density is the mass of a substance per unit volume. The chemical properties can only be observed by changing the identity of a substance.
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