Bellringer

1
Bellringer

• Use a Venn diagram to compare solids, liquids,
  and gases, based on shape, volume, and whether or
  not they are easily compressed (or forced into a
  smaller space).
• http//phet.colorado.edu/en/simulation/states-of-m
  atter

2
Properties of Matter

• Objectives
• 1.1 Distinguishing between intensive and
  extensive properties of matter
• Other AOD C.8.3 Compare chemical and physical
  properties of matter.

3
Demos

• Water alcohol
• Marbles water
• Can anything else be added to the marbles and
  water?
• Relationship to solids, liquids, and gases?

4
Gas and Vapor

• Gas applies to substance that is naturally in
  the gaseous state at room temperature.
• Vapor is the correct term for the gaseous state
  of a substance found in the solid or liquid state
  at room temperature.
• What is steam?

5
Matter and Substance

• Define matter.
• Def. anything that has mass and takes up space.
• Def. of substance matter that has a uniform and
  unchanging composition.
• In my words Substance is matter that has a
  chemical formula (i.e., H2O or NaCl)
• What about pool water or ocean water???

6
Physical Properties

• Def. a characteristic that can be measured or
  observed without changing the samples
  composition
• Name some physical properties of a pencil.
• Name some physical properties of a rose.
• May include density, color, odor, taste,
  hardness, conductivity, malleability, shape,
  mass, length, volume, melting point, boiling
  point, state of matter at room temperature.

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Extensive vs. Intensive Properties

• Extensive properties are dependent upon the
  amount of substance present.
• Intensive properties are NOT dependent upon the
  amount of substance present.
• Use the list of physical properties from the
  previous slide, and classify each property as
  either extensive or intensive.

8
Chemical Properties

• Def. the ability (or inability) of a substance
  to combine with or change into one or more other
  substances
• What happens to iron when exposed to air?
• Iron exposed to nitrogen?
• P. 57 Look at Figure 3.3. What physical and
  chemical properties of copper are evident in
  these photos?

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Verbal Assessment Assignment

• Section Review (p.60) 1, 2, 5
• Workbook (pp.13-14) 7-28