Which is the best description of a scientific theory?

• A. A well-substantiated explanation of some aspect of the natural world that is based on a body of evidence and has stood the test of time.
• B. A collection of observations that describe a natural phenomenon.
• C. An educated guess that scientists use to design experiments.
• D. A hypothesis that has been proven true by a single experiment.

Answer: (A)

Verified step by step guidance

1. Understand the definition of a scientific theory: A scientific theory is a comprehensive explanation of some aspect of the natural world that is supported by a large body of evidence and has been repeatedly tested and confirmed through observation and experimentation.
2. Differentiate between a scientific theory and other scientific terms: A scientific theory is not just a collection of observations, nor is it an educated guess or a hypothesis proven by a single experiment.
3. Recognize the characteristics of a scientific theory: It is well-substantiated, based on a body of evidence, and has stood the test of time through repeated testing and validation.
4. Evaluate the options given in the problem: Compare each option to the characteristics of a scientific theory to determine which one fits the description best.
5. Select the correct option: Choose the option that accurately describes a scientific theory as a well-substantiated explanation based on evidence and time-tested validation.