Across
- 3. mass of hot burning gases
- 6. holds the planets in their place
- 8. days of equal day and night
- 9. imaginary line that splits Earth into two equal halves
- 10. largest nebula in the universe
Down
- 1. a day in a year when a place has either longest or shortest period of daylight
- 2. country which has the world's largest tropical rainforest
- 4. an emergent tree which grows in a tropical rainforest
- 5. dwarf planet
- 7. the length of time Earth takes to orbit the Sun