Which of the following is an example of Tools of Science?

• A. Theory
• B. Observation
• C. Hypothesis
• D. Bunsen Burner

Answer: (D)

Tools of science are the instruments and equipment scientists use to perform experiments, measure, and manipulate conditions. A Bunsen burner is a piece of laboratory equipment that provides flame heat for heating substances and driving reactions under controlled conditions. Because it is a tangible device used in experiments, it counts as a tool of science. The other options describe thinking or observing aspects of science—a theory is an overarching explanation, a hypothesis is a testable prediction, and observation is the act of noticing and recording phenomena—rather than physical tools. So the Bunsen burner is the example that fits as a Tool of Science.