Changes

It is a plausible and consistent explanation for observable phenomena.  

It is a plausible and consistent explanation for observable phenomena.  

To be considered scientific, a theory must be [[falsifiable]].

To be considered [[science|scientific]], a theory must be [[falsifiable]].

This means that there must be some way to do experiments that could counter the theory's predictions, thus disproving the current theory.

This means that there must be some way to do experiments that could counter the theory's predictions, thus disproving the current theory.

<ref>"A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory. If it isn't, the theory is refined or rejected." [http://www.amnh.org/exhibitions/darwin/evolution/theory.php] </ref>

<ref>"A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory. If it isn't, the theory is refined or rejected." [http://www.amnh.org/exhibitions/darwin/evolution/theory.php] </ref>