why is tha water bule?

Question

why not purple?

Answer 1

If I see God, I'll ask him for you!

Answer 2

Water appears blue for the same reason that the sky is blue, but not *because* the sky is blue. Both appear blue because of the fact that light on the blue end (higher energy) of the spectrum is scattered by air and water more readily than that on the red side (lower energy). Using a large tank of water indoors and a light source this can be observed in the absence of a blue sky. As for why not purple, i'm assuming that the logic is if blue scatters more than red, purple should scatter more than blue, right? i suspect that a bit of green, blue, and purple are all being scattered and combining to form what we perceive as blue, but am not 100% on this last part.

Answer 3

Sun light contains all colors of the spectrum combined. The instant light hits water, the water molecules begin to absorb light. Red light has the weakest energy and is the first victim (this is why red objects deep underwater appear BLACK, because no red light is left to reflect back to the observer).
Blue light has the most energy (highest frequency) in the visible spectrum and is scattered quickly--this is why the water and sky are blue.

Answer 4

water is transparrent. it can appear to be blue or grey, green, yellow or ny colour - this is due to its reflecting quality. often the sea appears blue because it is a large reflecting surface that is mirroring the colour of the blue sky. hope that answers your question

Answer 5

Water is actually more clear than it is blue. Pour some water into a clear glass. The water will be clear.

Answer 6

The blueness comes from the sky reflecting.

Answer 7

Hi. It can be purple near dawn or sunset. Or even red. And it is black at night. Go figure.

Answer 8

water is blue because the sky is blue...it reflects the sky

Answer 9

sorry