Gravity and The Solar System

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Across
  1. 2. referred to as “Earth’s twin”
  2. 6. Jupiter, Saturn, Uranus, Neptune
  3. 7. something that orbits around another object
  4. 9. A measure of gravity exerted on an object
  5. 12. least dense planet
  6. 13. a ball of gas in space that produces light
  7. 15. first planet discovered by telescope
  8. 16. meteoroids that strike earths surface
  9. 18. The amount of matter in an object
  10. 19. rock/dust existing outside earthsAtmosphere
Down
  1. 1. large celestial bodies that revolve the sun
  2. 3. nearly 4 times the size of Earth
  3. 4. has an atmosphere with water
  4. 5. located between mars and Jupiter
  5. 8. force that pulls objects toward one another
  6. 10. Mercury, Venus, Earth, Mars
  7. 11. referred to as the “Red planet”
  8. 13. the star our solar system revolves around
  9. 14. closest planet to the Sun
  10. 17. most massive planet
  11. 19. a Celestial body that revolves a planet