Across
- 4. In a direction opposite to that in which the hands of a clock rotate.
- 6. The period of darkness every twenty-four hours; the time from sunset to sunrise.
- 7. The time taken by the earth to make one revolution around the sun.
- 10. The distance east or west of the prime meridian.
- 12. The action of the earth turning or spinning around its center.
- 15. Each of the twelve named periods into which a year is divided.
- 16. The distance north or south of the equator.
- 17. When the position of the Sun is exactly over the Equator.
- 19. Known as the North Star, is the brightest star in the constellation Ursa Minor, situated slightly less than 1° from the north celestial pole.
- 20. An invisible line around which an object rotates, or spins.
Down
- 1. The act of revolving or turning round on an axis or a center.
- 2. The amount of heat in something.
- 3. A moment in the year when the Sun's apparent path in the sky is farthest north or south from Earth's Equator.
- 5. An imaginary line around the middle of a planet or other celestial.
- 8. A closed curve, consisting of all points whose distances from each other add up to the same value.
- 9. A view or opinion that is incorrect because based on faulty thinking or understanding.
- 11. A period of twenty-four hours as a unit of time, reckoned from one midnight to the next, corresponding to a rotation of the earth on its axis.
- 13. A regular, repeating path that one object in space takes around another object.
- 14. The third planet from the sun in our solar system.
- 18. A hot ball of gases that gives off great amounts of energy.
