Science

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Across
  1. 1. a small, dispersed amount of something
  2. 4. the quality of being hot; high temperature
  3. 7. the trapping of the sun's warmth in a planet's lower atmosphere
  4. 10. the natural agent that stimulates sight and makes things visible
  5. 11. the emission of energy as electromagnetic waves or as moving subatomic particles
  6. 12. the flow of energy at the speed of light through space or a material medium
Down
  1. 2. a portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range
  2. 3. the smallest particle of a chemical element that can exist
  3. 5. the distance between successive crests of a wave, especially points in a sound wave
  4. 6. a particle representing a quantum of light or other electromagnetic radiation
  5. 8. a portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region
  6. 9. a range of electromagnetic radiation that can be detected by the human eye