how matter changes
Post on 29-Aug-2014
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How matter changesWhat does it change into?
Is This Matter Changing?
? freezing? cutting
? bending
? heating
Is this Matter Changing into something new?
Even though the wood has changed shape, the wood is still wood!
Is this matter changing into something new?
Is this matter changing into something new?
Is this matter changing into something new?
Physical Changes…Nothing New• Ice cream to melted ice cream?
• Chocolate to melted chocolate?
• Ice, to water, to water vapor?
• Steel to molten steel?
PERMANENT CHANGES
Fireworks are metals (magnesium and copper) that change chemically as they light up the night skies.
SIGNS OF CHEMICAL CHANGES
• Color Change
SIGNS OF CHEMICAL CHANGES
• Energy released
SIGNS OF CHEMICAL CHANGES
• Energy absorbed
SIGNS OF CHEMICAL CHANGES
• Production of a Gas
SIGNS OF CHEMICAL CHANGES
• When food spoils, it undergoes a chemical change.
• Odor released
SIGNS OF CHEMICAL CHANGES
• Not easily reversed
PERMANENT CHANGES
PERMANENT CHANGES
PERMANENT CHANGES
PERMANENT CHANGES
PERMANENT CHANGES
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