Unit 2 Vocabulary Test (ES)

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