state of matter 2012
Post on 11-May-2015
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States of
Matter
Can Matter Change State?
• Can it change from a solid to a liquid or a liquid to a gas?
How?
Temperature or Pressure
http://www.harcourtschool.com/activity/states_of_matter/
0 degree C
-78.5 degree C
-196 degree C
-268 degree C
Solid + Energy Melting
Liquid + EnergyEvaporation
Gas - Energy Condensation
liquid - Energy Freezing
What are the Terms Given to Change of State?LIQUID
GAS
LIQUID
SOLID
The Chemical Properties of a Substance Will Determine How it Behaves.• .• *When substances combine and react to form a new
substance, a chemical change has occurred.
• A chemical change occurs as a result of a chemical reaction.
• A chemical change is usually not reversible – a brand new substance has formed.
• A physical change is a change in appearance – looks different, but same substance as before.
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