Heat,Light & Sound

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Across
  1. 3. The transfer of heat byI the circulation or movement of the heated parts of a liquid or gas
  2. 4. A repetition of sound produced by the reflection of sound waves from a wall, mountain, or other obstructing surface
  3. 7. An object used to measure the temperature of something or a human body.
  4. 8. An insulating material and is usually a glass or porcelain. Supports a charged conductor
  5. 9. Sound with frequencies below a certain range
  6. 11. A substance,body,or device that readily conducts heat,electricity,sound
  7. 13. Standard unit of frequency
Down
  1. 1. Applying pressure on something.
  2. 2. The transfer of heat between two parts of a stationary system
  3. 5. Rate of occurance
  4. 6. Applying pressure on something.
  5. 7. Objects measured at the warmth or coldness at a standard value.
  6. 10. The process in which energy is emitted as particles or waves
  7. 12. A ringing sensation of sound in the ears