iBT Prep - some tips for you...

I'm posting some information for you ....I hope it can be of some use.

Fact :

A fact is something that is always true and can be proved.

Opinion :

An opinion is something that can not be proved. People might disagree about an opinion.

After you understand these two definitions, you could watch this slide presentation. I think the content will be useful for you in your effort to further your English language studies :

Note : after the slide show starts, 
you can use your mouse to drag the definitions around 
or to make the print larger.

Source : 
http://itblibrary.blogspot.co.id/2012/10/define-describe-compare-explain.html