Across
- 3. system the sun (which is our closest star) and the eight planets with their moons, as well as the asteroid belt
- 8. the four planets furthest away from the sun; the "last" four planets
- 9. the eight celestial bodies which orbit our sun
- 10. one complete orbit around another celestial body
Down
- 1. the four planets closest to the sun; the "first" four planets
- 2. belt the "belt" of rocks which orbit the sun and lies between Mars and Jupiter
- 4. (yearly) the period of 12 months or 365 days
- 5. natural satellites of planets
- 6. of the axis the tilt of the earth which causes the seasons
- 7. winter, spring, summer, fall; a period of three consecutive months with similar climate