G4 Science - U2 Vocab Review

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Across
  1. 5. A form of energy that can travel through empty space and make things visible
  2. 8. A pattern of symbols used to communicate a message
  3. 10. The giving off of energy as electromagnetic waves
  4. 12. Data such as pictures, sounds, or messages
  5. 14. To bounce off of something
  6. 16. A visual object or mark that stands for something else
  7. 19. Describes signals sent as continuous waves
  8. 20. The height or distance from the crest to the midpoint or trough of a wave
  9. 22. The highest part of a wave
  10. 23. The number of times a wave peaks over a period of time
  11. 25. The lowest part of a wave
  12. 26. A symbol or message sent over a distance
Down
  1. 1. A regular or repeated way something happens
  2. 2. The interaction of electric fields with matter
  3. 3. Describes signals sent as separate bits instead of continuous waves
  4. 4. The measurable strength or power of a vibration
  5. 6. The matter through which sound passes
  6. 7. To take something in and contain it
  7. 9. The origin of something
  8. 11. An interruption of stillness
  9. 13. A body movement used to communicate an idea or emotion
  10. 15. To move from one place to another
  11. 17. An aspect of light that helps us tell objects apart by sight
  12. 18. The quality of sound described as high or low
  13. 21. To give off
  14. 24. A property of matter that allows light to pass through it