Define and explain the term scientific theory

A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.

Explanation:

Sorry if wrong

Definition: A scientific theory is an explanation of a part of the natural world and can be verified with experiments and lots of evidence. It is commonly confused with law and difference is that a theory explains what causes and why a natural phenomenon occurs.