Science Crossword

2. When the Moon passes through Earth's shadow.
5. When the Earth takes a complete 24 hours to orbit one full circle on its axis.
7. A group of stars with names.
11. When the water level drops from high to low tides.
12. The difference in the water level between high tide and low tide.
13. The different shapes of the Moon's appearance.

1. When tides cause the oceans to bulge,or stick out,at the sides of the Earth facing towards and away from the Moon.
3. When the positions of the Sun,the Moon, and the Earth are aligned, the Sun and Moon pull on Earth in parallel directions.
4. When the Moon passes between Earth and the Sun.
6. The daily changes in ocean level at shorelines around the world.
8. When the Sun and the Moon are at right angles to each other relative to Earth, they pull on Earth in perpendicular directions.
9. The dark inner region of one of Earth's shadow.
10. When Earth orbits around the sun for one year.