Science

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Across
  1. 2. used to transmit information from a remote control television
  2. 3. matter that allows some light to pass through
  3. 5. wave signals generated electronically from digital information
  4. 7. matter that does not allow light to pass through
  5. 9. the region where light is obstructed or blowed
  6. 10. the science of light properties and behavior
  7. 11. used to transmit television and radio programs
  8. 12. a unique 3-signal combination of dots and dashes codes for each letter of the alphabet and numbers 0 to 9
Down
  1. 1. matter that allows light to pass through
  2. 4. a wave with a specific pattern that carries information
  3. 6. wave signals that are not generated from digital information
  4. 8. are used to transmit information between cell phones or between an internet router and a computer