What is the colour of water ?

Hi ,

Greetings for the day !!

Today we are sharing you a simple project - What is the colour of the water?.

What is the colour of water? Why the sea is in blue colour? Who painted the sea blue?
These are FAQ's of children in the age group 5 yrs -10 years. Let's explain them by a diagram.

When white light travels through water in Ocean,
* Red, Orange and Yellow colour of the light has low energy levels gets easily absorbed by the water.

* Green, Blue, Indigo and Violet colour lights has high energy levels, they still penetrate deeper into water than the other colours. All the colours slowly fade off except blue. The blue light reflects back giving Blue colour to the ocean.

* After 1 km, the light cannot penetrate, hence the sea is darker.