Science vocab study

2. the time required for Earth to rotate once on its axis
3. the time required for Earth to orbit once around the sun.
8. the different appearances of the moon from Earth throughout the month.
13. the spin of a body on its axis.
15. the motion of a body that travels around another body in space, one complete trip along an orbit.
16. an event in which the shadow of one celestial body falls on another.
17. the periodic rise and fall of the water level in the oceans and other large bodies of water

1. a natural or artificial body that revolves around a celestial body that is greater in mass.
4. the difference in levels of ocean water at high tide and low tide
5. the moment when the sun appears to cross the celestial equator.
6. a shadow that blocks sunlight.
7. a force of attraction between objects that is due to their masses.
9. a tide of increased range that occurs two times a month, at the new and full moons.
10. the outer part of a shadow such as the shadow cast by Earth or the moon in which sunlight is only partially blocked.
11. a tide of minimum range that occurs during the first and third quarters of the moon.
12. a division of the year that is characterized by recurring weather conditions and determined by both Earth's tilt relative to the sun and Earth's position in its orbit around the sun.
14. the point at which the sun is as far North or as far South of the equator as possible.