Energy & Matter

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Across
  1. 6. abbreviation; the energy detected in all directions of the universe
  2. 7. occurs when a light source is moving away from the observer
  3. 11. this is what everything is made of
  4. 15. this is what all light does
  5. 18. light is _______________ radiation
  6. 19. the abbreviated scientific term for all light
  7. 20. a neutrally charged particle
Down
  1. 1. a band of colors, like a rainbow
  2. 2. a positively charged particle
  3. 3. what allows you to see
  4. 4. occurs when a light source is moving closer to the observer
  5. 5. the length of a wave
  6. 8. a grouping of atoms
  7. 9. a negatively charged particle
  8. 10. this is what allows you to run
  9. 12. to produce or discharge
  10. 13. gravity depends on ____ and distance
  11. 14. this property of matter depends on mass and volume
  12. 16. what matter is composed of
  13. 17. center of an atom