The solar system

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Across
  1. 5. an area of space with a really strong gravitational field
  2. 8. Named after the roman goddess of Love.
  3. 9. Star small rapidly moving meteor
  4. 11. Length of a year on this planet equals to 88 days on earth.
  5. 13. Is something that is about 10 billion light years
  6. 15. Word derived from the Greek words atmos, meaning 'vapour', 'ball' or 'sphere'. It is the envelope of gases surrounding Earth and other planets.
  7. 17. A system made of millions of stars, planets and dust held together by gravitational attraction.
  8. 19. Pluto’s only known moon
  9. 20. Thought to be a planet, but is now considered a dwarf planet. Is named after the Roman god of death and King of the Underworld.
  10. 22. A long period comet which passed close to the sun in the spring of 1997.
  11. 25. Neptune, Uranus, Saturn, and Jupiter are considered planets
  12. 26. The second biggest gas giant.
  13. 27. Also a dwarf planet. Less known and named after the Greek goddess of discord.
  14. 28. Length of a year on this planet is about 11.86 years on Earth.
Down
  1. 1. Amount of moons Venus has.
  2. 2. Minor planets that can neither be classified either as a planet or as a comet. Word derived from greek word aster, similar to the Greek goddess Asteria.
  3. 3. Magnetic force that attracts everything it can towards the center of any physical body having mass.
  4. 4. Length of a year on this planet is about 1.88 years on Earth.
  5. 6. the star around which the earth orbits. In Greek mythology, its god was named Helios.
  6. 7. Liquid that is the basis of the fluids of living organisms. Until now, only found on Earth and came here from asteroids full of it.
  7. 10. Dwarf planet that spins so fast that distorts its shape, giving this dwarf planet a distinct egg-like shape.
  8. 12. Neptune has 6 of this
  9. 14. a natural luminous body visible in the sky especially at night
  10. 16. Name of our galaxy derived from a Greek myth about Heracles.
  11. 18. the natural satellite of the earth. It is also the classification of other natural satellites. It is named after the Roman goddess whose Greek equivalent is named Selene.
  12. 19. are cosmic snowballs of frozen gases
  13. 21. One nickname of this planet is The “Ice Giant”
  14. 23. the curved path of a celestial object or spacecraft around a star
  15. 24. Really small planet that is also considered an asteroid
  16. 27. Planet that has 365.25 days per year.