crossword

1234567891011121314151617181920
Across
  1. 3. has craters
  2. 4. an object that moves around a larger object
  3. 7. a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity
  4. 8. the sun is a ____
  5. 10. consists of the Sun and everything that orbits, or travels around, the Sun
  6. 11. occurs when the Sun, Earth, and Moon align so that the Moon passes into Earth's shadow
  7. 13. the sun is made of _____
  8. 15. round shape
  9. 16. earth's natural satellite
  10. 17. circular movement
  11. 18. similar to orbit
  12. 20. the Earth's _____
Down
  1. 1. what a planet is made of
  2. 2. the sun is a _____ source
  3. 3. a piece of rock or metal that is burning
  4. 5. there are 8 ______ in our solar-system
  5. 6. a mixture of gases that surrounds the Earth
  6. 9. any natural feature of the Earth's surface, such as a hill, a lake, or a beach
  7. 12. has life
  8. 14. a star
  9. 19. a regular, repeating path that one object in space takes around another one