TIDES

And all about them

The two types of tides

There are two types of tides, high and low, and special tides called spring and neap tides!

How tides change!

As the moon orbits around the earth and as they orbit around the sun together travel around the sun, the combined gravitational forces cause the world's oceans to rise and fall.

Tides also change everyday, as the earth, moon, and sun orbit, their positions constantly shift, making the gravity effects change, this makes tide times a bit different every day!

Spring and neap tides

Spring tide: When the Moon, Earth, and Sun fall in a straight line, which we call syzygy, we can see the greatest distance between high tide and low tide.

The End!

Special thanks to…

http://en.wikipedia.org/wiki/Tides#Range_variation:_springs_and_neaps

Oceanography picture suppliers oceanography.com director brennan grieve

made with Microsoft PowerPoint 2007

Nothing was hurt in the making of this film!

The sea life hall of fame!From Brennan Ecology CO.