Science Vocab

1. The motion of a object around a point, especially around another object or a center of mass
4. Very long- period of waves that move through the ocean and response to the forces exerted by the Moon and Sun
5. When water advances to its furthest extent onto the shoreline
7. A period of moderate Tides when the Sun and Moon are at right angles to each other
8. The small portion of the moon visible and the sky before or after the new moon day
9. The shape of moon sunlight proportion as seen from Earth
14. An attraction the Earth exerts on an object or the object exerts on the Earth
15. An object spinning motion on its own axis
17. For the moon to become less and less, or decline
18. 1/2 of this sphere, formed by plane that passes through the center of the sphere

2. A cycle of 235 synodic, very equal to 19 years
3. The springing fourth of the tide during new and full moon
6. A center phase of the moon, when it's bulging outward but isn't quite full
10. Water level that has dropped as a result of the moon's gravitational pull on the Earth
11. A period of the year that is distinguished by special climate conditions
12. The angle between an objects rotational axis and its orbital axis
13. This is a period of the Moon getting bigger to the Earth's POV
16. An invisible line around which an object rotates, or spins