Physical and Chemical Changes

By: Megan Martens

Physical Properties

Any charateristic of a material that can be observed or measured without changing the identity of the material.


Examples:

  • Color and Shape
  • Length and Mass
  • Volume and Density

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Physical Change

The physical property of a substance change,but the identity of the substance does not change.


Examples:

  • Changing from one state of matter to the next. [ Ice melts to liquid-liqiud boils to steam]
  • Melting Point 0 degrees C,and Boiling Point !00 degrees C.
  • Slicing bread.

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Chemical Properties

Any characteristic that gives a substance the ability to undergo a change that results in a new substance.

Examples:

  • Flammability
  • Reacts with Oxygen
  • Reacts with Light
  • Reacts with Water

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Chemical Change

A change in the indentity of a sudstance due to the chemical properties of that substance. [ You have a new substance, is it reversible? ] NO!!!!


Examples:

Flammability [ Fire burning to ash]

Reacts with Oxygen [ Fruit Rotting]

Heat and Light [ Vitamins can change when exposed to light]

Electricity [ Water can be broken down with electricity]


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