Across
- 4. The longest day of the year
- 8. An orbit that is not circular, but has two focal points.
- 13. 0 km/hour
- 16. The shift in on position of nearby objects on a background due to a change in viewing position.
- 17. The shortest day of the year
- 18. The spinning of the Earth on it’s axis every 24 hours.
- 19. The position when a planet is closest to the sun on its elliptical orbit.
- 20. The date of equal hours of day and night on October 21.
- 21. A The axis of the Earth points towards this star in the northern hemisphere
- 22. The movement of a planet around the Sun.
Down
- 1. A line of longitude every 15 degrees.
- 2. The position when a planet is farthest from the sun on its elliptical orbit.
- 3. The date of equal hours of day and night on March 21.
- 5. Foucault Pendulum, Day and Night, Coriolis Effect
- 6. Depends on the distribution of mass and rotation rate of a spinning object
- 7. (1851) The shift in direction of a pendulum due to the rotation of Earth. 11 degrees/ hour.
- 9. Mass. 1300 km/hour
- 10. The starting point for standard time zones in Greenwich, England
- 11. The imaginary line between the poles about which the Earth rotates.
- 12. 1690 km/hour.
- 13. The time difference of one hour for every 15 degrees longitude.
- 14. 24 hours
- 15. The plane that contains the Earth’s orbit