Across
- 1. The dark area behind an object that blocks light.
- 3. The time it takes Earth to complete one roation on its axis.
- 6. The time between sunset and sunrise on Earth.
- 8. One of the ends of an imaginary axis on which earth rotates. It always points towards the north star.
- 11. The time in the morning when the sun first appears over the horizon.
- 12. Matter through which light cannot travel.
- 13. An imaginary line around which a sphere, like a planet, rotates.
- 14. A time of year that brings predictable weather conditions to a region on Earth.
- 17. The star that Earth's North Pole points to.
- 18. The star at the center of the solar system around which everything else orbits.
Down
- 1. The time in the evening when the sun goes below the horizon.
- 2. The time between sunrise and sunset on Earth.
- 4. a position in relation to an object or another person or location
- 5. When an object turns on its axis.
- 7. The length of one of Earth's revolutions around the sun.
- 9. To move or travel around an object in a curved path.
- 10. Traveling around something else in a circular path.
- 15. The third planet from the sun, known as the water planet.
- 16. an instrument that uses a rotating magnetic needle to show direction.