Earth Crossword

4. regular, repeating path that one object in space takes around another one
5. chemical element that is a common grayish-colored metal
6. portion of the Earth's mantle that flows like molten plastic despite being solid.
8. the outermost shell of a terrestrial planet
10. the mostly solid bulk of Earth's interior
12. measures the distance north or south of the equator.
13. motion of an object around another object, or a complete cycle of that motion
14. half of a sphere, or ball

1. the circular movement of an object around a central line
2. boundary between the Earth's crust and its mantle
3. change in the orientation of the rotational axis of a rotating body
7. Imaginary line that divides Earth into the Northern and Southern hemispheres
9. angle between an object's rotational axis and its orbital axis
11. point in the orbit of a planet, comet, or other body most distant from the Sun