Earth and the Moon


How do tides on Earth work?

Two cycles of high and low tides occur each day, roughly thirteen hours apart. High j tides occur both where the water is closest to the Moon, and where it is farthest away. At the points in between, there are low tides.


This is a web preview of the "The Handy Astronomy Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App