Science crossword

2. when the Moon passes into Earth's shadow, causing the Moon to darken and sometimes turn red.
5. the branch of science that deals with celestial objects, space, and the physical universe as a whole.
6. the time the moon takes to go around the earth
7. a tide just after the first or third quarters of the moon when there is least difference between high and low water
9. the action of rotating around an axis
12. the time or date (twice each year) at which the sun reaches its maximum or minimum declination, marked by the longest and shortest days
14. the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of approximately equal length
15. when one object orbits another object

1. an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination
3. the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.
4. when the Moon passes between the Sun and Earth, blocking the Sun's light and casting a shadow on Earth
8. The force that attracts a body toward the center of the earth, or toward any other physical body having mass
10. the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun.
11. the partially shaded outer region of the shadow cast by an opaque object.
13. an exceptionally high high tide and an exceptionally low low tide, caused by the alignment of the Sun and Moon's gravitational forces during the new or full moon