Physical Property

1
Physical Property

• Can be observed with the senses or measured
  without changing the substance

• Examples
• Melting point
• Boiling point
• Color/shape
• Density
• Mass

2
Physical Change

• A change that does not involve altering the
  identity of the substance

• Examples
• Freezing
• Melting
• Boiling
• Cutting
• Grinding

3
Chemical Property

• Relates to a substances ability to undergo a
  change into a different substance

• Examples
• Ability to rust
• Flammable
• Ability to react with an acid
• Decomposes in light

4
Chemical Change

• A change where one or more substances is
  converted into different substances (a chemical
  reaction)

• Examples
• Rotting
• Burning
• Fermenting
• Cooking

5
So how do I recognize a chemical change??
6
So how do I recognize a chemical change??

• Bubbling production of a gas
• Heat
• Light
• Precipitate a solid formed during a reaction
• Unexpected color change

7
Chemical change chemical reaction and is
written as Reactants ? Products
This is what you make
This is what you start with