Across
- 5. The atmospheric layer lying between the troposphere and the mesosphere
- 6. Middle of something
- 7. third planet in our solar system
- 8. Regular sequence
- 11. Something that occupies space
- 13. rock from outer space
- 14. Water storage place
Down
- 1. How green plants use sunlight
- 2. Air around the Earth
- 3. Earth's liquid and frozen surface waters, groundwater and atmospheric water vapor
- 4. Zone of life
- 9. heat transfer method
- 10. Most of Earth's volume
- 12. It gets decorated for Christmas
- 15. Small objects that are hard small and dense