What is a scientific theory?

A scientific theory is a well-substantiated explanation of some aspect of the natural world that is based on a body of evidence and has been repeatedly tested and confirmed through observation and experimentation. It is a comprehensive explanation that can be used to make predictions about natural phenomena and is supported by a large amount of empirical evidence. Scientific theories are considered the highest level of scientific knowledge and are subject to revision or rejection based on new evidence or observations.

A well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses.