Musing: Plane Names

Just a quick thought for tonight:

What about using "Realms" instead of "Planes" with a more looser naming convention instead of "The Elemental Plane of..."

So:
The Water Realm
The Air Realm
?The Life Realm? (For Positive Energy)

etc.

It sounds a little less "scientific" then the default names used in later D&D editions and I think fits the theme of our setting better.

Just a thought...