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Understanding meaning

A theory is a set of claims and assumptions which are based on evidence - facts, measurements, experiments and observations.

The purpose of a theory is to help us understand, explain and predict something.

 

For example:

Our theory is that the chemical reaction did not occur because the chemicals heated up too much when the researchers left them in the sun.

Which 3 answers are closest in meaning to theory? Choose the 3 correct answers.

a set of claims based on evidence

a set of questions

a set of assumptions

a set of principles that explain something