Astronomy Terms (Earth Science 2027)

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Across
  1. 2. a massive explosion at the end of a high-mass star's life
  2. 3. the region around a star where liquid water could exist
  3. 4. the distance light travels in one year
  4. 10. the galaxy that contains our solar system
  5. 14. the process where small atomic nuclei combine to release energy
  6. 15. when light wavelengths become shorter because an object moves closer
  7. 16. a tide with the smallest tidal range caused by the Sun and Moon being at right angles
  8. 17. an object with gravity so strong that even light cannot escape
  9. 19. a cloud of gas released by a dying low-mass star
  10. 20. the regular rise and fall of ocean water caused mainly by gravity
  11. 21. the force that attracts objects toward one another
  12. 22. large gas planets mostly made of hydrogen and helium
  13. 25. the scientific theory that the Universe began expanding from a hot dense state
  14. 27. the region between Mars and Jupiter where most asteroids are found
  15. 31. the small dense core left after a low-mass star dies
  16. 34. a region beyond Neptune containing icy objects and dwarf planets
  17. 35. an object made mostly of ice, dust, and gas that orbits the Sun
  18. 38. a round object orbiting the Sun that has not cleared its orbital path
  19. 40. spinning of an object on its axis
  20. 41. a natural satellite that orbits a planet
  21. 42. when light wavelengths stretch longer because an object moves away
  22. 43. a tide with the greatest tidal range caused by the Sun, Earth, and Moon aligning
  23. 45. a factor kept the same during an experiment
  24. 46. the layer of gases surrounding Earth
  25. 49. the variable measured during an experiment
  26. 50. a yearly weather pattern caused by Earth's axial tilt
  27. 53. all forms of electromagnetic radiation
  28. 54. a rocky/metallic object that orbits the Sun
Down
  1. 1. an eclipse that occurs when Earth blocks sunlight from reaching the Moon
  2. 3. a graph comparing star temperature and brightness
  3. 5. a small dense object left after some supernovae
  4. 6. the absolute brightness of a star
  5. 7. a large cool star formed late in the life of a low-mass star
  6. 8. the phase when the entire lit side of the Moon is visible from Earth
  7. 9. the distance between two waves
  8. 11. the variable changed during an experiment
  9. 12. an extremely large and bright high-mass star
  10. 13. a large system of stars, gas, and dust held together by gravity
  11. 18. an invisible area around Earth that protects us from solar radiation
  12. 23. the phase when the Moon is between Earth and the Sun and appears dark
  13. 24. the number of waves passing a point in a certain time
  14. 26. a young forming baby star
  15. 28. an eclipse that occurs when the Moon blocks sunlight from reaching Earth
  16. 29. a cloud of gas and dust where stars form
  17. 30. the second most common element in the Universe
  18. 32. the most common element in the Universe and stars
  19. 33. an imaginary line an object rotates around
  20. 36. an educated prediction that can be tested (if/then)
  21. 37. small rocky planets with solid surfaces
  22. 39. phases the changing appearance of the Moon as seen from Earth
  23. 44. the movement of one object around another object
  24. 47. an object that orbits another object in space
  25. 48. the part of the electromagnetic spectrum humans can see
  26. 51. the stage where a star spends most of its lifetime fusing hydrogen
  27. 52. a streak of light caused when a meteoroid burns in Earth's atmosphere