Pretty much the title. There are lakes with light blue water, and lakes with almost black water, but when you put them in a glass, they’re both transparent. Why does the lake/river/sea/etc change the color of the water? (I’m not sure about the flair, but I think it’s chemical?)
In: Chemistry
The dissolved salts and minerals in the water, each body of water is fed by different sources carrying different material, and some keep that material moving like the Nile with it’s supposed silt, and some like the Dead Sea collect all of it And become more concentrated as water evaporates.
But most of these bodies of water aren’t concentrated *enough* for us to tell by looking at a small sample like your glass is. If your glass was 20 feet deep, you could look down the glass and the water would have a different color than if you looked through it from the side, because more and more natural light will be absorbed by the molecules.
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