The Solar System

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Across
  1. 2. the average distance from Earth to Sun - 150 million km
  2. 4. an object that orbits the Sun and has nearly a spherical shape
  3. 6. millions of small, rocky objects that orbit the Sun in the belt between the orbits of Mars and Jupiter. "Resembling a star"
  4. 7. an attractive force that exists between all objects that have mass
  5. 8. the largest object in the solar system, it's a star
  6. 11. the Sun and group of objects that move around it make up the solar system
  7. 12. the four planets closest to the sun, which are Mercury, Venus, Earth, and Mars. Made mainly of solid rocky materials
Down
  1. 1. the time it takes an object to travel once around the Sun
  2. 3. A spherical object that orbits the Sun. It is not a moon of another planet and is in the region of the solar system where there are many objects orbiting near it.
  3. 5. Jupiter, Saturn, Uranus, and Neptune. Made mainly of ice and gases such as hydrogen and helium. (Gas giants.)
  4. 9. It's made of gas, dust, and ice and moves around the Sun in an oval-shaped orbit
  5. 10. the path an object follows as it moves around another object