The term theory in science refers to principles, an idea or hypothesis that was developed or established by a person or group, and which is supported by evidence. A theory is an explanation of some aspects of the natural world, based on knowledge that has been repeatedly confirmed.
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Last edited at 5:39PM on 8/27/2013
A theory in science is a set of hypotheses that have been tested multiple times, with the results bringing back the same conclusions. Theories in science are supported by evidence. A theory in the general sense is an idea, and supported by little or no evidence.