Time, Space, and Energy Phenomena

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Across
  1. 2. a systematic description of an object or phenomenon
  2. 5. a recurring characteristic that helps identify a phenomenon
  3. 8. the indefinite continued progress of existance
  4. 10. the phase of the moon when it's 3/4 through its orbit
  5. 11. the phase of the moon in which we see the entire moon
  6. 12. the ability to cause change in matter
  7. 13. a huge system of stars
Down
  1. 1. dimension of height, weight,and depth where things exist
  2. 2. a piece of a rock smaller than an asteroid
  3. 3. a piece of a rock and metal that orbits the sun
  4. 4. a ball of ice, rock, and frozen gases that orbits the sun
  5. 6. the collection of 8 planets & their moons in orbit around the sun
  6. 7. a body in space that orbits a larger body
  7. 9. a fact, occurrence, or circumstance observed