The Solar System

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Across
  1. 2. A large celestial body that revolves around a star in a solar system
  2. 6. The attraction between two objects due to the invisible force of gravity; the gravitational pull from the Moon is primarily responsible for the tides that form on Earth
  3. 7. The luminous star around which Earth and other planets revolve; composed mainly of hydrogen and helium
  4. 8. Large and small rocks or metallic masses orbiting the Sun; made up of materials similar to those that formed the planets
Down
  1. 1. The force that causes objects with mass to attract one another
  2. 3. A star and the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it
  3. 4. A curved path followed by a satellite as it revolves around an object
  4. 5. A celestial body that revolves around a planet