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5 Written questions

5 Matching questions

  1. Fluid
  2. Gas
  3. boiling
  4. Solid
  5. boiling point
  1. a occurs when a liquid changes to gas below its surface as well as at the surface
  2. b has no definite shape or definite volume
  3. c a substance that flows
  4. d the temperature at which a liquid boils
  5. e has a definite shape and a definite volume

5 Multiple choice questions

  1. change from a liquid to a solid
  2. the result of an inward pull among the molecules of a liquid that brings the molecules of a surface together
  3. the particles in a liquid gain enough energy to move independantly, forming a gas
  4. occurs when the surface particles of a solid gain enough energy that they form a gas
  5. the change of state from a gas to a liquid

5 True/False questions

  1. What are the molecules of a solid doing?atoms and molecules are free to move independently, colliding frequently


  2. crystalline solidssolids that are made up of crystals


  3. What are molecules of a gas doing?the molecules are closely locked in position and can only vibrate


  4. Viscosityhas a definite shape and a definite volume


  5. What is happening to the molecules during melting?the particles in the solid vibrate so fast that they break free from their fixed positions