Unit 2 Vocabulary Test (ES)

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