Final Exam Preparations

12345678910
Across
  1. 2. system that removes certain gases and particles from industrial exhaust.
  2. 4. Instrument that measures the speed of wind.
  3. 7. time moon orbits the earth and goes through all phases of
  4. 9. natural ridges formed when water flow causes sediments to drop along river edges.
  5. 10. a star flaring up many times its original brightness.
Down
  1. 1. someone who believes that humans are merely passing through the earth.
  2. 3. 88 zones that astronomers divide the celestial sphere into.
  3. 5. Energy generated from sunlight and wind.
  4. 6. Russian spacecraft that allows astronauts to visit the ISS.
  5. 8. ocean surface currents that move in a circular path.