Matter, Mixtures, and Solutions

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Matter, Mixtures, and Solutions
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What is matter?

• Matter is anything that has mass and takes up
  space.
• Matter is broken down and classified into three
  states
• --solids
• --liquids
• --gases

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What is a physical property?

• A physical property is something that can be
  observed, measured, or changed without changing
  the substance itself.
• Color, shape, sizeall of these things are
  physical properties. Others include magnetism
  physical state, ability to conduce or insulate,
  and measurements.

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Magnetism

• Magnetism is a physical property because it
  describes an objects ability to attract other
  objects.
• Electromagnets battery, wire and nail
• Attraction north/south or south/north
• Repulsion north/north or south/south
• Poles north and south

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Physical State

• Physical state refers to whether the substance is
  a
• Solid definite volume and shape
• Liquid definite volume, not shape
• Gas no definite volume or shape

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Conduction and Insulation

• A conductor is able to transmit heat,
  electricity, or sound.
• - Why do we use a pot holder to pick up hot pots?
  
• An insulator prevents the passage of heat,
  electricity, or sound
• - Why do you wear fleece in the winter?

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Measurement

• Objects can be measured using
• - volume length x width x height or LxWxH
• - mass triple beam balance
• - length ruler, meter stick
• - time stop watch
• - temperature thermometer, C or F

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Mixtures

• Mixtures are made of two or more substances that
  combine but keep their physical properties.
• Examples
• Sand and water
• Iron fillings and salt
• Salt and pepper

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Solutions

• Solutions are made of two or more substances that
  combine so that their physical properties DO
  change.
• Examples
• Sugar and water
• Kool-aid and water

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What is a boiling point?

• All substances on Earth have a melting point and
  a boiling point.
• The melting point is the temperature the
  substance has to be in order to melt.
• For water 0 C or 32 F
• The boiling point is the temperature the
  substance has to be in order to boil.
• For water 100 C or 212 F

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A Review

• What is a physical property?
• What is a mixture?
• Why dont the ingredients in mixtures change
  their physical properties?
• What is a solution?
• Why dont the ingredients in solutions change
  their physical properties?
• What is a boiling/melting point? In water?