Movement around the sun.

5. The imaginary line that goes through the middle of the earth from top to bottom.
6. The inbetween season that occurs after summer.
8. The movement of an object around another object.
10. An object that orbits a planet.
12. The direction that the earth is rotating.
13. The fixed path in which the earth moves around the sun.
14. The sun and all the objects that orbit the sun.
17. The inbetween season that occurs after winter.
18. The name of the dwarf planet that exists in the Kuiper belt.
19. The season that the southern hemisphere experience when it is tilted less towards the sun.

1. The part of the earth that faces the sun.
2. That which is between Mars and Jupiter.
3. The imaginary line that goes around the earth which divides it into two halves.
4. The earth's closest star.
7. An object that orbits a star.
9. The turning movement of an object around its own axis.
11. The amount of planets in our solar system.
14. The tilting of the earth causes this phenomenon to occur.
15. The season that the southern hemisphere experience when it is tilted more towards the sun.
16. The shape of an orbit.