MARS

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Across
  1. 1. Giant mountains on Mars that were formed by eruptions.
  2. 2. The visible natural features of a place, such as mountains, deserts, or valleys.
  3. 5. A large object in space that moves around the Sun, like Earth or Mars.
  4. 6. Tools or devices scientists use to study and explore Mars
  5. 9. An object that moves around a planet in space.
Down
  1. 1. Mars has the deepest and longer one.
  2. 3. People who investigate planets and search for evidence of life.
  3. 4. A substance essential for human life that scientists discovered evidence of on Mars.
  4. 7. The condition that scientists hope to find evidence of on Mars.
  5. 8. The imaginary line a planet rotates around.