The Solar System

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Across
  1. 2. These are located beyond the asteroid belt.
  2. 5. This planet orbits the sun faster than any other planet
  3. 6. The inner planets are ______ planets.
  4. 7. Earth's moon is _______ than the Earth
  5. 8. This is made of rock, orbits the sun, and can be any shape
  6. 10. The outer planets are the ______ planets.
  7. 11. This planet takes the longest amount of time to orbit the sun
  8. 13. The more _____ an object has, the more gravity it exerts.
  9. 15. This is located between the 4th and 5th planet from the sun
  10. 16. The ______ includes all galaxies and solar systems within it.
  11. 17. Planets that are ____ from the sun take a longer time to orbit the sun
  12. 19. The _______ is the center of the solar system.
  13. 20. The Milky Way ______ is inside the universe.
Down
  1. 1. Two objects that are _______ together will have more gravitational pull.
  2. 3. The first person sent into space was Russian cosmonaut, ______.
  3. 4. The sun is ______ than all of the planets and moons.
  4. 5. This is made of rock and orbits a planet
  5. 7. The _______ is inside of the Milky Way galaxy.
  6. 9. These are located between the asteroid belt and the sun..
  7. 10. This is the main reason the moon revolves around the Earth
  8. 12. This is made of dust,ice, and rock, orbits the sun, and has a tail
  9. 14. Which planet is the third planet from the sun?
  10. 18. To ensure space travel was safe for humans, ______ were sent into space first.