Notes
Slide Show
Outline
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Matter SOL 5.4
  • Anything that has mass and takes up space.


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"All matter – regardless of..."
  •   All matter – regardless of its size, shape, or color – is made of particles (atoms and molecules) that are too small to be seen with the eye.
  •  Air, water, humans, dogs, shoes and cars are all made of atoms and molecules. Atoms are so small, it would take nearly 10 million atoms just to cross this dot.
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Physical Properties
  • The characteristics of a substance that can be measured without changing the substance.
  • They are observable.
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They include:
  • Mass – the amount of matter in an object
  • Weight – the pull of gravity on matter
  • Volume – the amount of space anything occupies
  • Density – mass per unit of volume


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"Melting point – the temperature..."
  • Melting point – the temperature at which matter melts
  •  Boiling point – the temperature at which matter boils
  • Freezing point – the temperature at which matter freezes


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"Evaporation – changing from a..."
  • Evaporation – changing from a liquid to a gas


  • Condensation – changing from a gas to a liquid


  • Solubility – the ability of a substance to dissolve



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Evaporation and Condensation
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Physical Properties
  •   As its temperature increases, many kinds of matter change from a solid to a liquid to a gas. As its temperature decreases, that matter changes from a gas to a liquid to a solid.
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Solid
  • The state of matter with a definite shape and volume.
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Liquid
  • The state of matter with a definite volume but no definite shape.
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Gas
  • The state of matter with no definite shape or volume.
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"Matter looks different and behaves..."
  • Matter looks different and behaves differently when it changes from one state to another.

    All particles of matter are in constant random motion. Particles of liquid water have less energy and move slower than particles of water vapor. And particles of solid water or ice have even less energy than liquid water and move even slower.
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Sources
  • SOL Pass – there are so many fun games and activities.  Be sure to go to Study Guide to see matter in action.
  • http://www.bbc.co.uk/schools/revisewise/science/materials/08_act.shtml
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