The Particle Model, Motion in Gases and Density

• What are the three states of matter

  Solid, Liquid, Gas
• For each state of matter, describe the arrangement of the particles

  Solid - dense, particles are closer together

  Liquid - less dense, particles are still touching but with more gaps

  Gas - even lesser dense, particles not longer touching
• Explain how a gas in a sealed container exerts a pressure on the walls of container

  Due gas particles not touching, they freely move. Meaning they make contact with the walls and sides of the container which increases pressure
• What is the formula for density?

  Density = mass/volume
• True or false? Solids and usually denser than gases

  True
• Describe how you could find the volume of an irregular solid objects

  1. Weigh solid object
  2. Get a large measuring cylinder and fill it will water
  3. measure initial volume
  4. place object in it
  5. measure volume of water fallen out of cylinder.