Science Vocab 41

1234567891011121314151617181920212223242526272829303132333435363738
Across
  1. 2. A celestial body resembling a small planet but lacks criteria for it to be classed as such
  2. 3. Meteors that hit Earth’s surface
  3. 7. A rapidly spinning neutron star emits radio and optical energy pulses
  4. 8. These stars end their lives by ejecting a planetary nebula and becoming a white dwarf
  5. 11. The location on the H-R diagram where most of the stars lie
  6. 14. A star that is much larger than a Sun-like star; will blow up in a supernova and end as a neutron star or black hole
  7. 15. The distance that light travels in one year.
  8. 17. A large cloud of dust and gas in space where stars are made
  9. 19. An object that orbits a star and is large enough to have become rounded by its gravity.
  10. 21. Pieces of asteroids that have broken off and continue a path through space
  11. 22. A force of attraction between objects that is due to their masses
  12. 23. The star at the center of our solar system.
  13. 24. The distance between two corresponding points on a wave
  14. 25. The brightness of a star when viewed from Earth.
  15. 27. A ball of frozen dust and rock that orbits the sun and has a tail that glows
  16. 28. The top of the wave
  17. 31. Large celestial bodies composed of rock and metal that move around the sun
  18. 32. Any natural object outside of Earth’s atmosphere
  19. 33. Space and all the matter and energy in it.
  20. 34. A huge group of single stars, star systems, star clusters, dust, and gas bound planets held together by gravity.
  21. 37. Areas throughout the universe where very little matter exists.
  22. 38. A tiny star that remains after a supernova explosion
Down
  1. 1. A gigantic explosion in which a massive star collapses and throws its outer layers into space.
  2. 4. Planets that have compact, rocky surfaces that are close to the sun
  3. 5. An object in space whose gravity is so strong that not even light can escape
  4. 6. A region of the solar system beyond the planets that contain many comets, asteroids, and other small bodies made largely of ice.
  5. 9. The sun, planets, and all the other objects that evolve around the sun.
  6. 10. The actual brightness of a star
  7. 12. The region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found
  8. 13. A huge, bright ball of burning gas held together by gravity.
  9. 16. Large, gaseous planets that are very cold at their surfaces, have ring systems, many moons, and lack surfaces
  10. 17. The process by which hydrogen atoms join together in the sun's core to form helium and bigger elements
  11. 18. A natural object that orbits a planet
  12. 20. The name of our galaxy, a spiral galaxy that contains about 400 billion stars.
  13. 21. A meteoroid that enters Earth’s atmosphere
  14. 25. A measure of how bright a star would be if all stars were at the same distance
  15. 26. A small, hot, dim star that is the leftover center of an old star
  16. 29. The bottom of the wave
  17. 30. Two or more stars bound together by gravity which causes them to orbit each other
  18. 35. A spherical region of comets and other icy objects that surrounds the solar system
  19. 36. A graph relating the temperature and brightness of stars