science project

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Across
  1. 2. the act of a celestial body circling another celestial body
  2. 5. When the sun and the moon form a 90-degree angle in relation to each other
  3. 6. the planet we live in
  4. 8. big rock that orbits the earth
Down
  1. 1. When the sun and moon form a straight line to eachother
  2. 3. All of the planets that orbit the sun
  3. 4. big ball of hot gas in the middle of our solar system
  4. 7. The tilt of the earth