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== Common usage ==  

== Common usage ==  

Evolutionists frequently argue that the word "theory" means very different things to scientists and non-scientists. For example, a PBS TV show says: <ref>http://www.pbs.org/wgbh/evolution/library/11/2/e_s_1.html</ref>  

Evolutionists frequently argue that the word "theory" means very different things to scientists and non-scientists. For example, a PBS TV show says: <ref>http://www.pbs.org/wgbh/evolution/library/11/2/e_s_1.html</ref>  

:''When we use the word "theory" in everyday life, we usually mean an idea or a guess, but the word has a much different meaning in science. This video examines the vocabulary essential for understanding the nature of science and evolution and illustrates how evolution is a powerful, well-supported scientific explanation for the relatedness of all life.''

:''When we use the word "theory" in everyday life, we usually mean an idea or a guess, but the word has a much different meaning in science. In science, a theory is something that ties together facts. For example, an apple dropping to the ground when you let go of it is a fact. From this we can draw the conclusion that there is a force pullin it down. This theory is called the theory of gravity. A scientific theory is therefor a logical explanation made on basis of all the available facts. This video examines the vocabulary essential for understanding the nature of science and evolution and illustrates how evolution is a powerful, well-supported scientific explanation for the relatedness of all life.''

   

   

The American Museum of Natural History exhibit on Darwin says: <ref>http://www.amnh.org/exhibitions/darwin/evolution/theory.php</ref>  

The American Museum of Natural History exhibit on Darwin says: <ref>http://www.amnh.org/exhibitions/darwin/evolution/theory.php</ref>