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Schrift-wk 4.4 tides

the regular rise and fall of the ocean's surface tides
an invisible force that pulls object toward each other gravity
the force of gravity between two objects depends on two things the amount of mass the objects have and the distance between the tow objects
what causes tides the gravitational pull of the moon on earth's oceans
the number of high and low tides that happen each day two high tides and two low tides
about how often do the tides change between high and low tides? about every six hours
the more mass an object has the more gravitational pull the object has
the closer objects are to each other the more gravitational attraction they will have on one another
about how long is it between two high tides about every 12 and 1/2 hours
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Created by: kschrift