Across
- 4. this planet have 2 moons called phobos and deimos
- 8. the biggest gas giant in the solar system
- 10. people that explore space
- 11. considered as a dwarf planet
- 12. earths orbit around the sun
- 14. this explanation proved that geocentric was wrong
- 16. a group of stars
- 18. cause by the gravity of the moon and sun
- 20. a space rock that travels at high speed
- 21. tides happens when the sun and moon are alligned
Down
- 1. this model was made by Claudius Ptolemy
- 2. its rings are made out of ice, dust and rock
- 3. another ice giant
- 4. this planet takes 88 days to orbit around the sun
- 5. earth spins on this
- 6. latin word for moon
- 7. this model was made by Nicolause Copernicus
- 9. system earth is a part of this
- 13. tides happens when the sun and moon are right angled to each other
- 15. the brightest planet
- 17. coldest planet
- 19. a planet where people can live