Science Terms by: Kira Godley

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Across
  1. 3. of the moon The illuminated portion of the Moon as seen by an observer, usually on Earth
  2. 8. Everything
  3. 9. The rate that light travels in one year or 9.4607 × 1012 km
  4. 10. The movement of an object in a circular or elliptical course around another or about an axis or center
  5. 12. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
  6. 14. A celestial body orbiting the earth or another planet
  7. 16. The spinning of a body on an axis
Down
  1. 1. A celestial body moving in an orbit around a star
  2. 2. The star that the earth orbits
  3. 4. A fixed luminous point in the night sky that is a large, remote incandescent body
  4. 5. The force that attracts a body towards a physical body having mass
  5. 6. Anything having to do with space
  6. 7. system The collection of planets and their moons in orbit around a star, together with smaller bodies
  7. 11. The curved path of a celestial body around another celestial body
  8. 13. A small rocky body orbiting the sun
  9. 15. A celestial object made of a nucleus of ice and dust and, they sometimes form a “tail” of gas and dust particles