chapter 3 properties and changes of matter...physical properties •physical properties are used to...
TRANSCRIPT
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CHAPTER 3
PROPERTIES AND CHANGES OF MATTER
SEC 1PHYSICAL & CHEMICAL PROPERTIES
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What you’ll learn?
• IDENTIFY PHYSICAL AND CHEMICAL PROPERTIES
• CLASSIFY OBJECTS BASED ON PHYSICAL PROPERTIES
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Why it’s important?• Understanding the different
properties of matter will help you to better describe the world around you.
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New Vocabulary:
• Physical Property• Chemical Property
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All substances have properties…Including people
Example:People can be identified by their …
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What are properties?• Matter has observable and
measurable qualities.• We can use general properties
to identify substances.• Two basic types of properties of
matter: Physical properties and Chemical properties…
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Physical Properties• Physical properties are used to
identify, describe and classify matter.• Characteristic of a substance that can be observed (using your senses) without changing the substance into something else.
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More EXAMPLES - Physical• size, shape, freezing point, boiling
point, melting point, magnetism, viscosity, density, solubility, luster and many more.Density- amount of mass in a
volumeSolubility- number of grams of one
substance that will dissolve in 100g of another substance at a given temp.
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PHYSICAL PROPERTIES
Dependent on size Mass, weight, volume
Independent of size Density, melting, boiling, solubility, magnetic, state and color
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Chemical Properties• A characteristic that cannot be
observed without altering/changing the substance.