If you’ve ever swum in the ocean, you’ve probably tasted a mouthful of seawater. It’s pretty salty. In fact, it’s 220 times more salty than freshwater. Th t’s a lot of salt! And scientists have wondered for a long time why the oceans contain so much salt. After all, freshwater pours into the oceans from rivers all over the world 365 days each year, and millions of gallons of water fall on the oceans as rain all the time. But that’s actually part of the reason why the sea got so salty in the first place, and stays salty now.View More Why Ocean is salty?