Astronomy: The Milky Way

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Across
  1. 3. the third planet from the Sun and the fifth largest in the solar system.
  2. 5. the fourth planet from the Sun and the seventh largest in the solar system.
  3. 6. the second planet from the Sun and the sixth largest in the solar system.
  4. 7. the first planet from the Sun and the smallest in the solar system.
  5. 8. the fifth planet from the Sun and the largest in the solar system.
  6. 10. an area around a planet generated by the iron in the planet's core that helps protect a planet from harmful solar radiation.
Down
  1. 1. the eight planet from the Sun and the fourth largest in the solar system.
  2. 2. the sixth planet from the Sun and the second largest in the solar system.
  3. 4. the layer of gases that surround a planet.
  4. 9. the seventh planet from the Sun and the third largest in the solar system.