Physical or chemical changes
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Transcript of Physical or chemical changes
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WELCOME
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Physical and Chemical Changes
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What is a Physical Change?
• A physical change alters the form of a substance, but does not change it to another substance.
Example:
Making Orange Juice
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What is a Chemical Change?
• When a substance undergoes a chemical change, it is changed into a different substance with different properties.
Example:
Baking a Cake
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5 Signs of a Chemical Change
1. Color Change
2. Precipitation
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5 Signs of a Chemical Change
3. Gas Production
4. Temperature Change
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Chemical or Physical Change?
• Cutting paper?
• Physical
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Chemical or Physical Change?
• Ice melting?
• Physical
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Chemical or Physical Change?
• Toast burning?
• Chemical
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Chemical or Physical Change?
• Rocket fuel burning?
• Chemical
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Chemical or Physical Change?
• Disappearing puddle?
• Physical
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Chemical or Physical Change?
• Candle burning?
• Chemical
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Chemical or Physical Change?
• Dry ice?
• Physical
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THANK YOU