Solar System Test Review

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Across
  1. 5. The sixth planet from the Sun, known for its rings.
  2. 6. The planets made mostly of rock, like Earth, Venus, Mercury, and Mars.
  3. 7. The farthest planet from the Sun.
  4. 9. The smallest planet and the one closest to the Sun.
Down
  1. 1. Planets made mostly of hydrogen and helium, like Jupiter and Saturn.
  2. 2. A bowl-shaped cavity on a planet or moon formed by an impact.
  3. 3. The second planet from the Sun, often called Earth's twin.
  4. 4. The largest planet in our solar system.
  5. 8. The third planet from the Sun.