Physical and Chemical

By Autumn Martin

Physical Change

Definition

When matter is broken into smaller pieces or heated so that it changes from a solid to a liquid.

Picture of a Physical Change

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3 examples

  • Cutting paper
  • Water to gas or ice
  • Breaking your arm

Chemical Change

Definition

When matter is permanently changed on an atomic level.

Picture of a Chemical Change

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3 examples

  • Turning wood into paper
  • Baking
  • Rusting

Four Indicators of a Chemical Change

  • Formation of gas
  • Formation of precipitate
  • Liberation or absorption of heat, light, or some form of energy
  • Distinct change in color

Video


  1. Amazing chemical reactions! - YouTube




    ► 4:12


    www.youtube.com/watch?v=FofPjj7v414Apr 20, 2014 - 4 min - Uploaded by 7a9rian2
    You need Adobe Flash Player to watch this video. Download it from .... Amazing chemical ...



Physical Property

Definition

A characteristic of a substance that can be observed without changing the substance into something else.


*Five senses: taste, touch, smell, hear, sight.

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Examples

  • Color
  • Hardness
  • Luster
  • Solubility
  • Odor

Chemical Property

Definition

A characteristic that is observed when a substance interacts with another substance.

Picture of a Chemical Property

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3 examples

  • Ability to rust
  • Ability to burn
  • Ability to tarnish