Earth and Space Key Terms

123456789101112131415161718
Across
  1. 3. Pieces of rocky space debris floating around solar system
  2. 5. Orbits the sun. Spherical in shape. Cleared its orbit
  3. 8. A big ball of hot glowing gases
  4. 10. Star at the centre of our solar system
  5. 13. The model that suggests the Sun is at the centre of the universe
  6. 14. A celestial object that orbits a larger celestial object
  7. 16. A force that pulls something towards the centre of the Earth or towards something with a large mass
  8. 17. The model that suggests Earth is at the centre of the universe
  9. 18. Natural object in space
Down
  1. 1. A flat disk of rocky objects which orbits the terrestrial planets, full of remnants from the solar system's formation.
  2. 2. Human made object which orbits a planet or celestial object
  3. 3. A meteoroid that makes it through Earth’s atmosphere
  4. 4. E.g., Mercury, Venus, Earth and Mars
  5. 6. Big ball of dust, rock and metal
  6. 7. Big ball of dust, rock and metal surrounded by an icy shell
  7. 9. A flattened disk which orbits the Jovian planets. Home to Pluto
  8. 11. Meteoroids that hit Earth’s atmosphere. Looks like shooting stars
  9. 12. Curved path around celestial object round a planet, star or moon
  10. 15. E.g., Jupiter, Saturn, Uranus, Neptune