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What do you remember about physical and chemical properties and changes?

3. Physical and Chemical Properties and Changes
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Physical and Chemical Properties and Changes

5. Properties Physical Property Chemical Property
a characteristic of matter that you can observe or measure without changing the identity of the matter.
Examples:
State of matter
Color
Mass
Density
is a characteristic of matter that can be observed as it changes to a different type of matter.
Examples:
Ability to burn (flammability)
Ability to rust
Ability to tarnish
Ability to rot
Ability to spoil

6. Changes Physical Change Chemical Change
a change in size, shape, form, or state of matter in which the matter’s identity stays the same.
Examples:
Folding a sheet of paper
Cutting a sandwich
Changes in state (freezing water)
a change in matter in which the substances that make up the matter change into other substances with new physical and chemical properties.
The substances that undergo a chemical change no longer have the same properties because they no longer have the same identity.
Examples:
Rust forming on an old car
Burning a wooden log
Molding bread

7. chemical property, chemical change, physical property, physical change
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chemical property, chemical change,
physical property, physical change
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8. What makes a chemical change different from a physical change?
A physical change can be observed without changing the matter's identity, a chemical change can only be observed as the matter becomes something different
The only way to be certain a chemical change has occurred is if a new substance is formed

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