University of Bristol
Institute of Physics logo
Why not try our other site: BEEP Biology & Ethics

Scientific Theories

Science provides accounts of the world, past and present. It produces scientific theories.   Scientific theories are ways of understanding what we can SEE in the world. They are based on observation and evidence.  

Developing new theories involves new ideas. Often the first ideas are just suggestions. A suggestion that can be tested to see if it is true is a scientific suggestion, or hypothesis.  

Scientific theories often incorporate scientific models, though theories and models are not the same things.   Theories often start off as cautious scientific theories, but once they have been tested many times they can become established scientific theories.

Big Bang theory is an important scientific theory concerning space and everything in it, including us.


What's your opinion?

Average rating

Not yet rated

Read comments

speech bubble  No comments yet. Why not be the first person to add one?

Bookmark this pagefacebook myspace bebo delicious diigo stumbleupon twitter reddit yahoo google


Is intelligent design a valid scientific theory?

The intelligent design movement claims there are aspects of the natural world that are so intricate and fit for purpose that they cannot have evolved but must have been created by an ‘intelligent designer’ Can this assumption be tested? Is it a theory?