solids, liquids, & gases

• What does the particle model of matter theory state?

  that everything is made up of small inelastic spherical particles.
• What are the 3 states of matter?

  Solid, liquid, gas
• Describe the structure & arrangement in solids.

  -strong forces of attraction between particles

  -held in a fixed, regular arrangement

  -particles don't have much energy

  -can only vibrate about in their fixed positions
• Describe the structure & arrangement of liquids.

  -weaker forces of attraction between particles

  -particles held close together but can move past each other & form irregular arrangements

  -more energy than in a solid

  -move in random directions at low speeds
• Describe the structure & arrangement of gases.


  -almost no forces of attraction between particles

  -more energy than in solids & liquids

  -free to move

  -constantly moving with random directions & speeds