>
> A theory is "scientific" if one can make some prediction based
> on the theory, and then design an experiment to see if the prediction
> holds. Some theories pass this test, others don't. What we know as
> "science" is the set of theories that repeatedly pass this test.
>
> Rune
>
Stated nicely on :
http://science.slashdot.org/article..../12/20/1656228

Evolution is a Theory in the Scientific Sense, "A set of statements or
principles devised to explain a group of facts or phenomena, especially
one that has been repeatedly tested or is widely accepted and can be
used to make predictions about natural phenomena."

This is why it counts as "Science"

Intelligent Design is a theory in the colloquial sense, which is what
most of the definitions that include "Idle speculation" are referring
to. There is no Scientific Backing for Intelligent Design, which is why,
if it's taught in a classroom, it should be a theology class, not a
Science Class.


http://www.thefreedictionary.com/Theory%20

the·o·ry Pronunciation (th-r, thîr)
n. pl. the·o·ries
1. A set of statements or principles devised to explain a group of facts
or phenomena, especially one that has been repeatedly tested or is
widely accepted and can be used to make predictions about natural phenomena.
2. The branch of a science or art consisting of its explanatory
statements, accepted principles, and methods of analysis, as opposed to
practice: a fine musician who had never studied theory.
3. A set of theorems that constitute a systematic view of a branch of
mathematics.
4. Abstract reasoning; speculation: a decision based on experience
rather than theory.
5. A belief or principle that guides action or assists comprehension or
judgment: staked out the house on the theory that criminals usually
return to the scene of the crime.
6. An assumption based on limited information or knowledge; a conjecture.