Integrated Science 3 Vocab

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Across
  1. 2. Fraction of sunlight reflected by a celestial object All planets move in elliptical orbits about the Sun
  2. 6. A flattened, rotating disk of gas and dust, tis a nebula
  3. 8. Orbit period with respect to the fixed stars
  4. 10. a law that Relates the period of a planet to its semi major axis of orbit
  5. 11. A theory Describes evolution of the solar system
  6. 14. Planets having Earth-like characteristics
  7. 16. Two planets lined up on the same side of the Sun
  8. 17. Planetary clockwise rotation
  9. 18. Two planets lined up on opposite sides of the Earth
Down
  1. 1. Earth's motion around the Sun
  2. 3. Counterclockwise revolution about the Sun
  3. 4. The gaseous planets
  4. 5. Average distance between the Earth and the Sun A new class of planets including Pluto
  5. 6. a system that Contains eight planets
  6. 7. this model Considers the Earth to be the center of the universe
  7. 9. Considers the Sun to be the center of the solar system
  8. 12. The study of the totality of all matter, energy, space, and time
  9. 13. Musical genius created classics like Runaway, Lift yourself and Carnival
  10. 15. Spinning on an internal axis