Wednesday, November 5, 2008

Physical and Chemical Properties


Today we are going to examine changes in the properties of matter:

Physical property changes of matter do not produce a new substance and are typically described by the following:

  • Color – every object has a color
  • Odor – intensity of smell
  • Density – mass divided by volume
  • Luster – how shiny it is
  • Ductility – ability to be drawn into thin wires
  • Malleability – ability to be beaten into thin sheets
  • Elasticity – ability to return to original shape
  • Hardness – ability to be scratched
  • Conductivity – allows energy flow, electricity or heat
  • Insulator – resists flow of energy, electricity or heat
  • Organic/Inorganic – was once alive or is alive/was never alive

Chemical property changes of matter produces a new substance and can be typically described by the following:

  • Color – change in color indicates a chemical change
  • Temperature – change in temperature indicates a chemical change
Using your balance and listening carefully we are going to cause some physical and chemical changes today in class! Have your journal handy to record your responses!

Now let's see if you can determine the difference between a chemical and physical change at QUIA!

For more fascinating information about matter check out www.chem4kids.com!

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