Across
- 2. A small rocky objects that orbits the sun
- 4. a sun centered model
- 8. the first four plants (Mercury, Venus,Earth, Mars)
- 10. a large round object that circles the Earth
- 13. A path a planet makes around the sun
- 14. the universe form in an instant billions of years ago
- 17. when one object just as planet or moom passes the other
- 18. an object that orbits the planets
- 22. A Huge star present at the center of the solar system
- 23. a cold mixture of dust and ice that develops long trails of light as it approaches the sun
- 24. an earth centered model
- 26. an object that orbits the sun
Down
- 1. the distance that light travels in years about 46 trillion km
- 3. A force that pulls objects together
- 5. a group of stars or patterns that people imagine that represents a figure, animal, or object
- 6. nation: a years way of expression numbers written in decimal form
- 7. third planet to orbit the sun; planet we live on
- 9. a giant ball of superheated gas or plasma compassed of hydrogen or helium
- 11. the four hottest planets farthest from the sun(Jupiter, Saturn, Uranus Neptune)
- 12. closest planet to the sun,
- 15. a streak of light produced when a place of rock or ice bond up as it enters the earths atmosphere
- 16. second planet from the sun
- 19. to find out or come to a decision by investigating reasoning or calculations
- 20. the largest planet in the solar system
- 21. all space and everything in it
- 25. a group of single star, star system, star cluster, dust, and gas bond together by gravity