Space Science Crossword

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Across
  1. 1. a natural satellite of a planet
  2. 2. a small body of ice, rock, and cosmic dust loosely packed together
  3. 3. a large, gaseous planet of the outer solar system with no known solid
  4. 6. a very small, rocky body found in space
  5. 9. the elliptical motion of a body as it travels around another more massive body in space
  6. 11. a meteoroid that reaches Earth’s surface without burning up completely
  7. 12. the spin of an object in space
  8. 14. any human made object placed in orbit around a body in space
  9. 18. the elliptical PATH an object takes in space while revolving around another object
  10. 19. the force that causes an object to follow a curved path
  11. 20. the force that accelerates a rocket
Down
  1. 1. a bright streak of light caused when a meteoroid or comet dust burns up in the atmosphere
  2. 4. a medium sized star; the center of our solar system
  3. 5. a small, dense, rocky planet similar to Earth
  4. 7. the speed and direction a rocket must have in order to orbit Earth
  5. 8. attracting force due to mass or rotation
  6. 10. smaller body that orbits around a larger body
  7. 13. body that orbit around the sun or a star and does not produce its own light
  8. 15. a small, rocky body that revolves around the sun
  9. 16. the speed and direction a rocket must have in order to completely break away from a planet’s gravitational pull
  10. 17. mixture of gases that surrounds a planet