Why is the ocean blue (vibrations and rotations)?
That cool, refreshing glass of water on a hot day may appear colorless, but water is actually a faint blue color. The blue color becomes visible when we look down into, or through, a large volume of water. We see water in a variety of ways. It may be colored by particles, the presence of bacteria, or by reflecting the world above its surface. Ice and snow may reveal a vivid internal blue. Water itself has an intrinsic blue color that is a result of its molecular structure and its behavior.