Scientific Theory

The video explains scientific theories as well-tested hypotheses that explain phenomena. It contrasts theories with scientific laws, using examples like global warming and the Big Bang. Theories are not proven with absolute certainty but are accepted based on evidence. Scientists remain open to new ideas that may replace current theories. The video concludes by prompting viewers to consider whether science can prove or only disprove theories.

What is a scientific theory?

• A random guess about natural phenomena

• A hypothesis that has been disproved

• A well-tested hypothesis that explains phenomena

• An untested idea about the universe

Which of the following is an example of a scientific theory?

• The hypothesis of evolution

• The description of gravity

• The Big Bang Theory

• The law of gravity

How does a scientific law differ from a scientific theory?

• A law describes phenomena, while a theory explains them

• A law is always true, while a theory is always false

• A law explains phenomena, while a theory describes them

• A law is a hypothesis, while a theory is a proven fact

What does the law of gravity describe?

• The reason for the Earth's rotation

• The explanation of gravitational forces

• How objects are attracted to each other

• Why objects fall

Why can scientific theories and laws never be proven with absolute certainty?

• Because they are based on guesses

• Because new evidence can always emerge

• Because they are not based on experiments

• Because they are only opinions