User blog comment:CarusELumen/RWBY = Elements?/@comment-5217560-20130723034409/@comment-23784953-20130723073101

That's the charm of speculating though, it's the feeling of figuring something out, and finding out you're right.

In topic, I'd agree with Yang and Weiss being Fire and Ice respectively.

To argue with Ruby and Blake, I feel like Blake is BOTH Earth and Wind, with Ruby effectively being the fifth element.

I'm basing all this on Ruby having silver eyes. Based on Ozpin's reaction, silver eyes are probably pretty rare. That, and her usage of the Cross Shot, which may or may not be Void.

That 'eye color' point is moot though since Yang has purple eyes, which can easily be associated with the fifth element as well.