Across
- 4. light outer shadow that occurs during an eclipse
- 6. Length of solar cycle of sun’s high and low activity
- 7. most common aurora color
- 9. the number of high tides that occur on earth each day
- 13. eclipse which occurs when the earth casts its shadow on the moon
- 14. days on which the earth is not tilted toward or away from the sun
- 17. the portion of the lit side of the moon that can be seen from earth
- 18. this is the same for the moon’s orbit around the earth and its spin around its axis
- 19. caused by the interaction of solar wind, earth's magnetic field and chemical particles in the atmosphere
- 20. eclipse which occurs when the moon casts its shadow on the earth
- 22. the phase of the moon that occurs between the first quarter moon and the full moon
- 23. phenomena caused by the moon’s gravitational pull, and, to a lesser extent, the sun’s gravitational pull
- 25. path that the moon’s umbral shadow take across the earth during a total solar eclipse
Down
- 1. the phase of the moon that occurs halfway between the new moon and the full moon
- 2. dark inner shadow that occurs during an eclipse
- 3. collisions with these particles at high altitudes cause red auroras
- 5. the phase of the moon that occurs between a new moon and the first quarter moon
- 8. days on which the earth is tilted at a maximum toward or away from the sun
- 10. the phase of the moon that we see is growing from night to night
- 11. the line separating day from night on a celestial body
- 12. occur as a result of earth's axial tilt as it travels around the sun
- 15. 5 degree difference between the plane on which the moon moves in relation to that of the earth
- 16. the phase of the moon that we see is shrinking from night to night
- 21. another term for axial tilt
- 24. the moon is in ________ rotation around the earth