Here are some useful and interesting Science Websites you may want to have a look :

*Note : This post will be updated frequently.

1.

HOW STUFF WORKS?

The Hows, Whats and Whys.

http://www.howstuffworks.com/

2.

NASA

Astronomy

http://www.nasa.gov/

3.

DISCOVERY

http://www.discovery.com/

4.

SCIENTIFIC AMERICAN

Latest Science News.

http://www.scientificamerican.com/