Sun-Earth-Moon Crossword

4. Descriptor, according to the text, of Earth's distance away from the Sun to receive energy necessary for life.
6. The celestial body that has the smallest effect on the tides on Earth.
9. The type of force that causes objects to be pulled toward the ground.
11. Gravitational force is inversely proportional to the ________ squared between two objects.
12. Type of tide in which the Sun and moon are aligned.
14. Dark central portion of a shadow of an eclipse.
15. The celestial body that has the biggest effect on the tides on Earth.
17. Whenever less than one-half of the moon's face is illuminated, the phase is known as a _____.
18. The scientist who discovered the universal law of gravitation.

1. Outer portion of a shadow in which you will only see a partial eclipse.
2. Type of tide in which the Sun and moon are at a 90 degree angle between each other.
3. Process by which the Sun combines lighter elements to make heavier elements.
5. Occurs when the moon aligns exactly between the sun and Earth.
7. Points of an orbit in which an eclipse will occur.
8. Type of tide in which only one high and low tide occur due to the ocean floor.
10. Solar eclipses always happen when there is a __________ phase.
13. When half of the moon's face is illuminated, the phase is known as a ______.
16. Part of the sun that shows it is rotating.
17. Acronym for something that can be ejected from the Sun and effect life on Earth.