sodium & chlorine, the main two elements dissolved in seawater, sodium chloride, the chemical name for salt, rivers carrying sediment/minerals, the source of the salt in seawater that comes from land, minerals from underwater volcanoes, the source of the salt in seawater that comes from the ocean, salinity, a measure of the amount of salt in water, evaporation, At the hot equator, the seawater more salty because during ___ the salt is left behind., freezing, At the cold poles, the seawater more salty because during ___ the salt is left behing., rivers flowing in, ___ makes seawater less salty because freshwater is added., sinks, Seawater that is more salty ___ because it is heavier (more dense)., rises, Seawater that is less salty ___ because it is more lightweight (less dense).

Salinity

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