Period of about 26,000 years. Tilt is always 23.5 o . The motion of the moon around the Earth causes the Moon to undergo a cycle of changes, or Phases . Synodic Month - the time between like phases of the Moon. It is different from the sidereal month because the Earth is moving in its orbit as the Moon is orbiting the Earth.
Earth rotates through water bulges.
Lunar Eclipse - the Moon wonders into the shadow cast by the Earth. Look in your notes for all the possible configurations of eclipse types. The Moon blocks our view of the Sun. It is temporary coincidence that the Moon is the same angular size in the sky as the Sun. A Total Eclipse is when the Moon completely blocks the Sun, and we get the chance to see other portions of the Sun we can not normally see.