Why does water look blue?

  • 1 Replies
  • 1746 Views

0 Members and 1 Guest are viewing this topic.

*

Sophie Seifert-Gram

  • Guest
Why does water look blue?
« on: 12/11/2009 10:30:02 »
Sophie Seifert-Gram  asked the Naked Scientists:
   
Hi!

I love your show!

I was just about to take a bath and decided to send you an e-mail.

Why does water look green when it is hot, and blue or clear when it is cold?

Thanks!

Sophie Seifert-Gram, 15 years old

Chicago, Illinois, USA

What do you think?

*

Offline lightarrow

  • Neilep Level Member
  • ******
  • 4586
    • View Profile
Why does water look blue?
« Reply #1 on: 12/11/2009 19:19:14 »
Because it absorbs the complementary colour: red-orange.
See also the thread:

http://www.thenakedscientists.com/forum/index.php?topic=20753.0