Across
- 1. Earth's Northern and Southern Halves
- 4. the shortest day of the year
- 5. where volcanoes get their lava
- 7. When we are closer to the sun
- 11. the process of Earth sifting through dense materials
- 12. 4 minutes shorter than a Solar Day
- 13. 55% of earth's surface
- 15. requires a speed of 25,000 mph
- 16. Boundary between the crust and the upper mantle
Down
- 2. The horizontal line that creates Earth's hemispheres
- 3. contains the tectonic Plates
- 6. a day in March when earth gets equal day and night
- 8. imaginary lines that run from North to South
- 9. imaginary lines that run from East to West
- 10. The change or wobble of earth's axis
- 14. When we are further from the sun