they can change by summarizing a hypothesis or group of hypotheses that have been supported with repeat testing.
A scientific model can change if new evidence is found. If the new evidence that has been found contradicts the model or theory then a scientific model or theory can change.
A scientific law is the description of a recurring event that occurs in nature. A scientific theory is an explanation of the law. The law does not change, but the theory may change when new data indicate that it needs to.
no
It can change if it is proven wrong, or if a new theory is proven more likely to be true.
yes you can, in theory. But it is very difficult to change an established 'ruling paradigm' (however incorrect).
whenever an experiment fails to confirm the theory it is no longer a theory ... it becomes a hypothesis
No. It means that it was the best theory supported at the time it was formulated. Theories can change if new scientific evidence provides new information.
No. It means that it was the best theory supported at the time it was formulated. Theories can change if new scientific evidence provides new information.
Yes. If a scientific theory cannot be "falsified" - that is, proven to be not true - then it isn't "scientific". A scientific theory will always lead to some tests that can be performed. If the test fails - that is to say, if your theory doesn't behave in accordance with the experimental results - then we can say that the theory is "disproved". This is the problem with a lot of the "global warming" and "global climate change" hysteria; the computer models for climate change make a number of predictions, but the models don't behave as predicted. The global climate change theory is, if we judge by the results of the models, disproved.
New experimental data, more correct determined.
The scientific theory is evolution.
Not really, if the theory proves to be wrong then it is replaced by something better (using the scientific method)..