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5 Written questions

5 Matching questions

  1. convection currents
  2. convex lens
  3. mechanical wave
  4. electromagnetic waves
  5. convergence
  1. a a form of energy that can move through the vacuum of space
  2. b the upward movement of warm air and the downward movement of cool air
  3. c the state of separate elements joining or coming together
  4. d The wave with no transfer of matter - This wave requires a medium.
  5. e a lens that is thicker in the middle than at the edges and bends light rays towards one another

5 Multiple choice questions

  1. a moving wave that consists of oscillations occurring perpendicular to the direction of energy transfer.
  2. the direct transfer of heat from one substance to another substance that it is touching
  3. a form of oxygen that has three oxygen atoms in each molecule instead of two. protects us from dangerous ultraviolet radiation from the sun
  4. having the sun as the center
  5. a dense, collapsed core with a very strong gravitational pull that forms when a very massive star becomes a supernova

5 True/False questions

  1. Geocentrichaving the earth as the center


  2. Spiral galaxygalaxy that looks like a giant pinwheel spinning through space


  3. chlorofluorocarbonschemical substance, found mainly in liquid coolants, that damages the earth's protective ozone layer


  4. absolute magnitudemeasure of salt in water


  5. CopernicusPolish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)


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