An idea/ postulation regarding an unsubstantiated observation or situation.
In short a theory is like having a suspicion about something, but not enough evidence to say whether it is true or not.
For example: If someone steals something from your cupboard, you may not have seen it happen, but you may well suspect someone of doing it; essentially this is a theory until such time as you have some facts or evidence to prove the case. You may have a number of theories, and not just one.
The same thing happens in various fields of research, scientists may have a suspicion or theory about a particular occurrence/ event/ particle/ microbe/ planet etc. They base their theory on reasonable deduction as well as the evidence at hand. They may then devise experiments (if possible) to prove or disprove the theory.
theory for rocks and minerals
a theory which is made by observation
You mean the evolution theory? Darwin
Do you mean "theory"?
That would depend on the scientific theory in question.
I don't think there is such a thing as the "supersonic theory". If you mean "superstring theory", no, they are not the same.
what does triple-risk model mean
an educated theory
A false theory. Break it down to myth: False. And logical: Theory
Gathering data, forming a theory, testing the theory to destruction.
If you mean Chemtrail it is a conspiracy theory.
to live in a systematized society