How do the tides change based on the moon?

The moon orbits the earth in an elliptical motion. This means that at some point in time the moon is closer to the earth than in other times. When the moon is closer to the earth, the water is more greatly attracted to the moon (due to gravitational force), When this happens we will experience high tide. Conversely, when the moon is further way from earth than at normal we will experience a low tide.

hope this helped - bwabwa