Astronomy crossword puzzle

12345678910
Across
  1. 3. planets are rocky and smaller.
  2. 4. are made up of gas,dust,and stars that have different shapes.
  3. 7. come from the asteroid belt.
  4. 9. are chunks of rocks that burn when entering our atmosphere.
  5. 10. are covered in craters because they have no atmosphere.
Down
  1. 1. are made up of ice,dust,and methane.
  2. 2. are made up of planets,moons,asteroids,comets,and dust and gas that orbit the sun.
  3. 5. unit of measurement in space.
  4. 6. planets have a gas surface and are larger.
  5. 8. is a star that is in the Milky Way galaxy and keeps our planets in orbit.