Final answer:
Scientific knowledge comes from the scientific method, which includes controlled experimentation and hypothesis testing. The steps include observations, questions, research, hypothesis formulation, experimentation, and conclusion.
Step-by-step explanation:
Scientific knowledge is derived from a structured process called the scientific method. This method typically begins with an observation followed by a question. After conducting background research, a hypothesis is formulated. The hypothesis is then tested through controlled experimentation. Results are analyzed to draw conclusions, which may then be communicated to the scientific community.
The steps in the scientific method are:
- Making observations.
- Identifying questions.
- Researching existing information.
- Formulating hypotheses.
- Testing hypotheses through experiments.
- Analyzing results and drawing conclusions.
To answer the student's question directly: Scientific knowledge is primarily derived from C. Controlled experimentation and testing hypotheses, as this method provides reliable and reproducible evidence that can be examined by others in the scientific community. Personal beliefs, unsystematic observations, or random assumptions without evidence do not contribute to scientific knowledge in a reliable manner.