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Stack #214344

tide periodic rising and falling of the water level of the ocean
what causes tides? gravitational pull of the moon and earth
why does the moon's gravity effect us more than the sun's gravity? the moon is closer
about how many hours are there between high tides? about 12 1/2 hours
tidal range difference in height between a high tide and the next low tide
spring tide when the sun, moon, and earth are directly aligned resulting in an extra-high tidal bulge and extra-low tidal dip
neap tide during first and third-quarter moons, sun and moon are not aligned with earth... results in less extreme high and low tides
what's the difference between direct and indirect high tides? direct high tides are closest to the moon, resulting from the most gravitational pull from the moon
Created by: cemarcum