PHYSICAL & PHYSICAL & CHEMICAL CHANGES CHEMICAL CHANGES Objectives: Objectives: 1. 1. Compare and contrast physical Compare and contrast physical and chemical changes and chemical changes 2. 2. Identify examples of physical Identify examples of physical and chemical changes and chemical changes
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PHYSICAL & CHEMICAL CHANGES Objectives: 1. Compare and contrast physical and chemical changes 2. Identify examples of physical and chemical changes.
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PHYSICAL & PHYSICAL & CHEMICAL CHANGESCHEMICAL CHANGES
Objectives:Objectives:
1.1.Compare and contrast physical and chemical Compare and contrast physical and chemical changeschanges
2.2.Identify examples of physical and chemical Identify examples of physical and chemical changeschanges
Why do I care?
Physical and Chemical changes occur around us everyday! Understanding them will help us better understand our world.
Change in Phase Change in Phase RelocatingRelocating RotatingRotating Molding (shaping)Molding (shaping)
Chemical ChangesChemical Changes
Chemical change: a change that occurs causing the identity of the substance to change Burning Chemically digesting food (acid and bile) Reacting with other substances
A chemical change is also called a chemical reaction
Chemical ChangesChemical Changes Chemical changes are changes that alter the
chemical make up of the substance. New matter is formed with properties that are