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Physical State. Matter can exist in three forms, or physical states: liquid, solid, or gas. Matter can change from one physical state to another by the processes of melting, freezing, evaporation, and condensation. Temperature changes can affect changes in state. Mass.

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Presentation Transcript
Physical state
Physical State

  • Matter can exist in three forms, or physical states: liquid, solid, or gas.

  • Matter can change from one physical state to another by the processes of melting, freezing, evaporation, and condensation.

  • Temperature changes can affect changes in state.


Mass

  • Mass is the amount of matter in an object.

  • Mass is measured with a balance.

  • Mass is not the same as weight.

  • Weight is a measurement of the pull of gravity on an object.

  • Weight is measured with a scale.


Magnetism
Magnetism

  • Matter that contains iron, nickel, cobalt, or steel will be attracted to a magnet.

  • Not all metals are attracted to a magnet.


Relative density sinking floating
Relative DensitySinking & Floating

  • Weight doesn’t determine if an object will sink or float.

  • The volume of an object and how much “stuff” (matter) is in the object will determine the density.


Conduction
Conduction

  • Some materials allow thermal (heat) energy or electrical energy to flow through them easily.

  • These materials are called conductors.


Insulation
Insulation

  • Some materials do not allow thermal (heat) energy or electrical energy to flow through them easily.

  • These materials are called insulators.


Solubility in water
Solubility in Water

  • Solubility refers to the ability of a substance to dissolve when added to water.

  • A liquid, solid, or gas can be dissolved in water. Examples may include lemon juice in water, sugar in tea, and the carbonation in a soda.


Does it matter
Does it Matter?

  • Matter has properties that can be observed and measured.

  • These properties determinehow matter is:

    • Classified

    • Changed

    • Used


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