The Solar System

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Across
  1. 2. the only planet known to support life because of its temperature, the amount of water on and below its surface, and the mix of gases in its atmosphere all make life possible. (p. 3)
  2. 6. the smallest of the terrestrial planets and the one that is closest to the sun. (p. 2)
  3. 7. The planet that tilts almost completely on its side (p. 5)
  4. 9. A __________ system is a system of objects in space that includes at least one star, planets, their moons, asteroids, comets, and other space debris (p. 1)
  5. 10. the largest planet in our solar system and has seventy-nine different moons that we know of! (p. 4)
  6. 11. The planet most famous for its rings with moons that maybe able to support life. (p. 4)
  7. 12. sometimes called the “red planet” because large amounts of iron in the soil give it a reddish color. (p. 3)
Down
  1. 1. The farthest planet from the sun. (p. 5)
  2. 3. It is the hottest planet because it has a very dense atmosphere. (p. 2)
  3. 4. The four closest planets to the sun are made up mainly of rock and metal. Each has a solid surface and is known as a _____________ planet. (p. 2)
  4. 5. Objects are held in orbit by the force of _________. (p. 1)
  5. 8. the oval-shaped path an object follows as it revolves around another object in space (p. 1)