Space

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Across
  1. 2. The Earth completes one rotation every ________
  2. 5. Matter that is invisible.
  3. 6. A bright streak of light in the sky caused when a meteoroid enters the Earth’s atmosphere.
  4. 7. The outermost layer of the atmosphere of a star, including the Sun.
  5. 8. Star system sonsisting of two stars orbiting around their common center of mass.
  6. 10. The Earth completes one revolution every ________
Down
  1. 1. The third planet from the sun and one of the three terrestrial planets.
  2. 3. A phenomenon in which the Moon’s disk passes in front of the Sun, blocking sunlight.
  3. 4. The explosive death of a star.
  4. 9. A huge ball of gas and dust held togather by gravity.