Chapter 17 Vocabulary

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Across
  1. 4. Transfer of heat by movement within a substance (liquids only)
  2. 6. Equinox March 21/22: Start of spring in the Northern Hemisphere
  3. 8. Transfer of heat through matter by molecular activity.
  4. 10. Type of reflection that produces large number of weak rays.
  5. 13. Solstice June 21/22: First official day of summer in Northern Hemisphere.
  6. 15. Fraction of total radiation that is reflected by any surface.
  7. 16. Solstice December 21/22; first day of winter.
  8. 17. Layer that contains only a small fraction of the atmosphere's mass.
  9. 18. Measure of average kinetic energy of atoms in a substance.
  10. 19. Transfer of energy due to temperature differences in objects.
Down
  1. 1. A molecule of oxygen containing three oxygen atoms.
  2. 2. A line connecting points of equal temperature.
  3. 3. Electromagnetic waves bounce off objects.
  4. 5. Lowest layer of the atmosphere, temperature decreases as altitude increases.
  5. 7. Layer just above the troposphere at 20km above the Earth, ozone is concentrated here causing temperature increases.
  6. 9. Equinox Start of autumn in Northern Hemisphere.
  7. 11. Transfer of energy through space by electromagnetic waves.
  8. 12. Effect Heating of the Earth's surface & atmosphere from solar radiation.
  9. 14. Layer that is about 80km above the Earth, just below the thermosphere.