Sam Sierra Astronomy

Edit Answers
12345678910
Across
  1. 4. Planets are divided into two classes, ___ and outer.
  2. 7. Comets differ from asteroids in ____ composition.
  3. 9. A time-exposure of the night sky shows streaks of stars from our ____ ____.
  4. 10. Aristotle's Geocentric model is where the ____ is the center.
Down
  1. 1. Copernicus’ Heliocentric model is where the ____ is the center.
  2. 2. Most are located in the Kuiper belt and ___ ____.
  3. 3. Ursa Major is a constellation commonly known as the ___ ____.
  4. 5. The Sun is the nearest ___- to earth.
  5. 6. The inner planets are the four ____ to the sun.
  6. 8. The Sun is composed of mostly hydrogen in the ____ phase.