Answer: Option (b) is the correct answer.
Explanation:
A statement which states a scientifically acceptable general principle that is experimentally tested or verified is defined as a theory.
A theory is the sum of a number of observations which are tested in order to get the true result so that a statement can be framed.
Thus, we can conclude that out of the given options, a theory is a well-tested explanation for a broad set of observations.
A theory is a [tex]\boxed{{\text{b) well - tested explanation for a broad set of observations}}}[/tex].
Further Explanation:
Scientific Method:
This method includes thinking about any subject, scientific problem or content. Observation, hypothesis, comparison, organization, prediction, experimentation, evaluation and application are included in scientific method.
Scientific method includes steps as enlisted below.
Experiment:
It is defined as procedure framed for a specific purpose. It involves dependent as well as independent variables.
Theory:
It is a well-tested explanation for the data. This is accomplished when several set of observations are recorded. It cannot be accepted by just a single contrasting result.
Observation:
This is type of information collected by human beings. It results in raising several questions that lead to further investigations. It is necessary to collect proofs for the respective investigations.
Hypothesis:
This is a proposed explanation for observation and is verified by an experiment.
Therefore a theory is defined as a well-tested explanation for broad set of observations.
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Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Keys to studying chemistry
Keywords: experiment, hypothesis, observation, theory, scientific method, comparison, organization, prediction, well-tested explanation.
