But sea salt often originates in places where people never see the ocean. And this is Kathy for Kids Earth and Sky. You'll see that salt dissolves easily in water. You also need to know that there are natural chemicals in rocks all over the surface of Earth that form salts. So the sea is salty because salts are washed from land into the sea.
Salt can also go from sea to land.
When sea level is high, shallow seas can cover some parts of a continent. In fact, it's been said that all things flow to the sea. That's why when someone empties a car's radiator onto a supermarket parking lot at night when nobody's looking, that Ethylene Glycol will be washed by rain into storm drains, into streams and rivers, and ultimately into the sea. April, thanks for your question. We talk about everything on the Earth . . .