Published on March 5, 2014
What is Matter? Matter is anything that has a mass and takes up a space. Matter comes in three different states: solid, liquid and gas.
• • • • Properties of solids Solids don´t change shape unless you use your energy to change it. If you put a solid in a container it won’t change its shape. Solids can be hard, soft, bouncy or even fluffy. Solid particles don´t move around.
Properties of liquids Liquids take the shape of the container they are in. • Liquid particules move around. •
Properties of gases. Gases take the shape of the container they are in. • Gases have weight. • Gases particules move around freely. •
CHANGES IN MATTER
Physical changes in matter Sometimes objects change but the matter stays the same: • Tear • Break • Cut • Folded • Written • Mixture
Chemical changes in matter. Sometimes matter changes and become something else, new matter is formed: • Burning • Cooking • Rusting
Changes in state Matter also changes when it goes from one state to another. • • • When we heat water, it becomes water vapor. This is gas. The water has evaporated. When we freeze water, it becomes ice. This is a solid. The water has solidified . When we heat ice, it becomes water. This is a liquid. The ice has melted.
End of unit. by David Santos
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