Why is it when you hold a glass of water up close it is clear but when you look at the ocean it is blue?

water is clear up close, why is it blue or green at a distance and in large quantities?Why is it when you hold a glass of water up close it is clear but when you look at the ocean it is blue?
It's a trick. The water is always blue. It's just a very, very faint blue. In small quantities (like a glassful) your eye isn't sensitive enough to detect the blueness. Follow the link if you don't believe me!Why is it when you hold a glass of water up close it is clear but when you look at the ocean it is blue?
Because it reflects the sky and the sky is blue.
it has a blue undertone...i think
reflecting the sky
It's all about light waves. The light in your house, the sun, you name it, all give off light waves. The water in your cup, like the water in the ocean and lakes, are dense enough to stop blue from being absorbed, in turn reflecting it. Making it visible to your eye. That's all. It's not from reflecting the sky... sorry.
oxygen reflects blue light waves. If you see green , it's from chlorophyll in plankton. Most plankton is microscopic so it takes a large quantity to show up.
occeanwater is blue because the rays from the sky are reflected, refracted or mixed together to form white light.


There is no sky to enable this process with a glass of water.
It's reflecting the sky.
mineral content and reflection from the surroundings.
its very deep
both the quantity and the impurities mean a lot to the colour showing, but even more important is the reflected colour of the sky.
deeper water !
Light reflection