2 OCEAN CURRENTSOcean currents are moving streams of water within the ocean.There are two types of currents: surface currents and deep currents.How are surface currents caused?WINDHow are deep currents caused?DIFFERENCES IN DENSITY
4 SURFACE CURRENTS THREE THINGS EFFECT SURFACE CURRENTS: WIND, CORIOLIS EFFECT, AND CONTINENTS
5 DEEP CURRENTSWHAT CAUSES DEEP CURRENTS TO MOVE IF THE WIND DOESN’T HAVE AN EFFECT ON IT?WATER DENSITY MOVES THE WATER.COLD WATER IS MORE DENSE AND IT SINKS AND MOVESWARM WATER IS LESS DENSE AND IT RISESNOTE: SURFACE CURRENTS TRAVEL MUCH FASTER THAN DEEP CURRENTS
19 TIDESSPRING TIDES – WHEN THE MOON, THE EARTH, AND THE SUN ARE ALL ALIGNED. THERE IS A COMBINED GRAVITATIONAL PULL ON THE EARTHS OCEANS, RESULTING IN HIGHER HIGH TIDES AND LOWER LOW TIDES.NEAP TIDES – WHEN THE MOON AND THE SUN ARE AT RIGHT ANGLES TO EACH OTHER. GRAVITATIONAL PULL OF THE SUN AND THE MOON WORK AGAINST EACH OTHER RESULTING IN LOWER HIGH TIDES AND HIGHER LOW TIDES.
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