The Sun, Moon, and Earth

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Across
  1. 3. A big ball of gas
  2. 7. To spin
  3. 9. Happens when the Moon passes between the Sun and Earth, casting a shadow on Earth that either fully or partially blocks the Sun's light in some areas.
  4. 10. Occurs when the Sun, Earth, and Moon align so that the Moon passes into Earth's shadow.
  5. 12. Can support Life
  6. 15. A fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
  7. 16. The envelope of gases surrounding the earth or another planet.
  8. 17. In relation to the sun
  9. 18. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Down
  1. 1. An imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°.
  2. 2. A dent in the moon
  3. 3. The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
  4. 4. A celestial body moving in an elliptical orbit around a star.
  5. 5. To orbit
  6. 6. Earths satellite
  7. 8. To follow a path
  8. 9. A celestial body orbiting the earth or another planet
  9. 11. The outer layer of the earth
  10. 13. An imaginary line about which a body rotates.
  11. 14. The force that attracts a body toward the center of the earth, or toward any other physical body having mass.