Bell Ringer9-10-09

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Bell Ringer 9-10-09

1. Which would be the easiest to hold in your hand?
   a small rock, 100mL of water, or helium from a
   balloon? Why?
2. Which is the most difficult to hold and why?

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• Chapter 3 Section 1
• States of Matter

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The Four States of Matter

• Solid
• Liquid
• Gas
• Plasma

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Classifying the Four Types

• Classify them based upon
• particle arrangement
• energy of particles
• distance between particles

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1. Solids

• Particles are tightly packed, very close
  together, and vibrate about a fixed position
• Solids have a definite shape and a definite
  volume.

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Two types of solids

• 1. Crystalline the particles form a regular,
  repeating pattern.
• It has a specific melting point.
• Examples salt, sugar, snow
• 2. Amorphous- the particles are not arranged in a
  regular pattern
• It may become softer or change into other
  substances at different temperatures.
• Examples plastic, rubber, butter, glass

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Solids

• Particle Movement Examples

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2. Liquids

• Particles are tightly packed, but are far enough
  apart to slide over one another.
• Liquids have an indefinite shape and a definite
  volume.
• A liquid can also be called a fluid substance
  that flows

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Liquids

• Particle Movement Examples

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Properties of Liquids

• Surface tension is the result of an inward pull
  among the molecules of a liquid that bring the
  molecules on the surface closer together.

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Properties of Liquids

• Viscosity- a liquids resistance to flowing
• High viscosity ? flow slowly
• Ex Honey
• Low viscosity ? flow quickly
• Ex Water
• Viscosity video

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3. Gases

• Particles are very far apart and move freely.
• Gases have an indefinite shape and an indefinite
  volume.

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Gases

• Particle Movement Examples

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4. Plasma

• an ionized gas.
• a very good conductor of electricity and is
  affected by magnetic fields.
• Plasma, like gases have an indefinite shape and
  an indefinite volume.

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Plasma

• Particles
• The negatively charged electrons (yellow) are
  freely streaming through the positively charged
  ions (blue).

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Plasma

• Examples

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Lets Review
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States of Matter

• The Four States of Matter
• The Classification and Properties of Matter
  Depend Upon Microscopic Structure
• Particle arrangement
• Particle energy
• Particle to particle distance