States of Matter

Matter is anything made of atoms and molecules. Matter is anything that has mass and takes up space.

 

All matter exists as solids, liquids, or gases. These are called the states of matter. Matter can change from one state to another if heated or cooled. If ice (a solid) is heated it changes to water (a liquid). This change is called MELTING. If water is heated, it changes to steam (a gas). This change is called BOILING. The particles of ice, water, and steam are identical, but arranged differently.

 

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