ASTRO TEST REVIEW

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Across
  1. 2. If it’s called a ___________ eclipse, then the MOON is being blocked from our view.
  2. 7. An object's resistance to change in motion (wants to keep doing what it's doing)
  3. 8. Scientists compare the ________ of stars to elements to figure out what a star contains.
  4. 9. To spin on a fixed axis
  5. 11. We live in a __________ galaxy called the Milky Way.
  6. 12. Seasons in the Northern and Southern hemispheres are ________________.
  7. 13. On the day of the __________ we experience equal hours of daylight and darkness.
  8. 15. Our ________________ protects us from meteorite impact and UV sun rays
  9. 17. All stars start off in a cloud of dust and gas called a ____________.
  10. 19. The moon rotates and revolves at the SAME rate so we always see _(2 words)_ of the moon.
  11. 23. The Earth takes 365 1/4 days to complete one ________________.
  12. 28. If you drew a diagram of a LUNAR eclipse, the moon would be covered by Earth's _________.
  13. 29. The _________(2 words)_____________ of the sun is caused by Earth's rotation.
  14. 31. The greater the ________ of an object, the stronger its gravitational pull.
  15. 33. Scientists think the gravity of a supermassive _(2 WORDS)______ holds our galaxy together.
  16. 34. _________________ are mostly found between Mars and Jupiter.
  17. 35. The axis ______ different parts of the Earth toward or away from the sun as we revolve.
  18. 36. Our sun will NOT collapse and become a _(2 words)_ because it has less mass.
Down
  1. 1. The moon shines reflected ___________ in the night sky.
  2. 3. Our planet is just the right distance from the sun for ______________ to exist as a liquid.
  3. 4. Objects at a greater ___________ from one another will have LESS gravitational pull.
  4. 5. The PATH an object takes as it moves around another object
  5. 6. A__(2 words)___occurs when we add up the extra quarter day every 4 years.
  6. 10. The Earth's TILT and __________ cause the seasons to occur.
  7. 14. NEAP tide is the ________ high tide that occurs. (LEAST diff. between high and low)
  8. 16. Our atmosphere provides us with ______________ to breathe.
  9. 18. __________ tide is the HIGHEST tide that occurs (GREATEST diff. between high and low)
  10. 20. Comets, like planets, have a predictable _________________ -shaped orbit.
  11. 21. There would be NO _________________ if the Earth did not TILT and REVOLVE.
  12. 22. A star that goes through ___________ fusion, can officially be called a main sequence.
  13. 24. The ________ pull of the moon causes the TIDES to occur.
  14. 25. The season in which a hemisphere gets DIRECT SUNLIGHT would be ___________.
  15. 26. The moon revolves around the Earth because the Earth has a greater _______ and gravity.
  16. 27. The Earth's ________________ causes day and night and takes approx. 24 hours
  17. 30. On the day of a ____________ we experience the GREATEST or LEAST hours of sunlight.
  18. 32. If the moon was blocking the ____________ from us it would be called a SOLAR eclipse.