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5 Written questions

5 Matching questions

  1. Gas
  2. condensation
  3. Fluid
  4. What is happening to the molecules during melting?
  5. What are molecules of a gas doing?
  1. a a substance that flows
  2. b has no definite shape or definite volume
  3. c atoms and molecules are free to move independently, colliding frequently
  4. d the particles in the solid vibrate so fast that they break free from their fixed positions
  5. e the change of state from a gas to a liquid

5 Multiple choice questions

  1. change from a liquid to a solid
  2. the molecules are closely locked in position and can only vibrate
  3. where particles are loosely connected and can collide with and move past each other
  4. occurs when a liquid changes to gas below its surface as well as at the surface
  5. occurs when the surface particles of a solid gain enough energy that they form a gas

5 True/False questions

  1. amorphous solidssolids that are made up of crystals


  2. Solida substance that flows


  3. melting pointcharacteristic temperature of melting


  4. Viscosityhas a definite shape and a definite volume


  5. What is happening to the particles during freezing?the particles in the liquid move so slowly that then begin to take fixed positions