Questions: A scientist is running a test of her hypothesis. Which step of the scientific method is she executing? Observation Experiment Conclusion Analysis

The answer is the second one: Experiment.

Explanation for each option:

1. Observation: This step involves gathering data and noticing phenomena that can lead to a question or hypothesis. It is typically one of the initial steps in the scientific method.

2. Experiment: This is the step where the scientist tests the hypothesis by conducting experiments. It involves manipulating variables to determine if there is a cause-and-effect relationship. Since the question states that the scientist is running a test of her hypothesis, this aligns with the "Experiment" step.

3. Conclusion: This step involves interpreting the results of the experiment to determine whether the hypothesis is supported or refuted. It comes after the experiment and analysis.

4. Analysis: This step involves examining the data collected during the experiment to understand what it indicates about the hypothesis. It is typically done after the experiment is completed.

In summary, since the scientist is actively testing her hypothesis, she is in the "Experiment" phase of the scientific method.