Date post: | 26-May-2015 |
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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.
SOLIDS
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.
LIQUIDS
Properties of liquids
• Liquids take the shape of the container they are in.
• Liquid particules move around.
GASES
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.
by David Santos
End of unit.