Across
- 5. how long has the sun existed for?
- 6. what is a celestial object made up of ice&dust?
- 7. which planet which still orbit earth but is a dwarf planet?
- 9. what is meteoroid called when entering earth's atmosphere?
- 11. which planet is farthest from the sun
- 13. what is the massive explosions on the sun called?
- 14. who has a average temperature of 470c?
- 15. which planet's surface is similar to that of our moon
Down
- 1. what gives Uranus and Neptune it blue color?
- 2. which planets are made of mostly hydrogen and helium?
- 3. what is a planet?
- 4. what element is the sun composed of?(there is a & symbol)
- 8. which planet has the biggest Radius
- 10. what is the dark spots on the sun?
- 12. which planet is closest to earth in terms of its surface temperature?