Unit 11 Space

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Across
  1. 5. The color of a star depends on this
  2. 6. Beyond the Kuiper belt, at the edge of our Solar System, lies the area where comets originate
  3. 9. These form in the accretion disks of stars
  4. 10. These form in the accretion disks of planets
  5. 11. A huge cloud of gas and dust that stars can form out of
  6. 12. This diagram is used to plot stellar evolution over time based on its initial starting point
  7. 13. This process is how stars produce power in their cores
  8. 14. The Milky Way Galaxy is this specific type of galaxy
  9. 15. This is 13.8 billion years old
Down
  1. 1. Both high-mass and medium-mass stars are classified as
  2. 2. For the Sun to be stable, the inward and outward forces within the Sun must be
  3. 3. This is the y-axis of an H-R diagram
  4. 4. Even with microscopic starting pieces, matter gravitationally attracts nearby matter and slowly forms larger clumps
  5. 7. These are classified into three groups based on their shapes
  6. 8. Makes up 99% of the mass in the solar system
  7. 14. This explains how the universe behaved in the beginning, and the way it currently is