Living on and island, I am constantly at the beach and in the ocean. After a long afternoon at the beach I notice how the ocean may have started at one point on the beach and then completely change after a few hours. In this resource, the nature of the tides and how the position of the moon and sun effect the tides are easily explained. There are two types of tides, Spring Tides and Neap Tides. Spring tides are when the tides are at their highest and lowest and there is either a full moon or a new moon and the sun is directly in front of the moon or the moon is directly behind the earth and the sun. Neap Tides are when there are half moons and the moon is on either side of the earth when the sun is not directly in front of it. These tides are due to the differences in forces on each side of the earth when is it revolving throughout the day. This is a great source that made it much easier for me to understand tides and the universal gravitational force.
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