Unit 2 Vocabulary Test (ES)

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Across
  1. 2. The leftover body of mass after a sun-sized star dies.
  2. 5. To get bigger in volume, like a balloon.
  3. 7. The leftover body of mass after a star three times the size of our Sun dies.
  4. 10. A massive explosion, emitting energy so far and wide, it can kickstart the birth of new stars.
  5. 14. The warming effect of mass as it shrinks tighter due to gravity.
  6. 17. The path a body of mass takes around a larger body of mass, usually elliptical.
  7. 18. The balancing of gravitational forces and fusion expansion leading to a stable star.
  8. 19. Plentiful and available in large quantities.
Down
  1. 1. Scattered pieces of waste or remains.
  2. 3. Pertaining to the shape of an ellipse (egg-shaped).
  3. 4. The second smallest element and second-most abundant element in the Universe.
  4. 6. A body orbiting around a planet.
  5. 8. Debris left over from the creation of a star system.
  6. 9. The smallest and most abundant element in the Universe.
  7. 11. A body of mass moving in an elliptical orbit around a star.
  8. 12. The most accepted model of explanation of how star systems are born.
  9. 13. The leftover body of mass after a star twice the size of our Sun dies.
  10. 15. A baby star, not yet fusing elements in its core.
  11. 16. A star that is fusing Hydrogen into Helium in its core.