Across
- 1. - the second time that day and night are equal
- 6. - imaginary horizontal lines
- 9. - made of the crust and the upper mantle
- 10. - the longest day of the year
- 13. - the first time that day and night are equal
- 14. - the liquid layer of the earth
- 15. - the innermost layer of the earth
Down
- 2. - imaginary vertical lines
- 3. - the shortest day of the year
- 4. - the largest layer of the earth
- 5. - the outermost layer of the earth
- 7. - located under the lithosphere
- 8. - refers to the "tilting" of the earth
- 11. - the center of latitude
- 12. - its chemical symbol is Fe