Final answer:
When applying the scientific method, it is important to formulate a hypothesis to guide the research and investigation process. The hypothesis helps make predictions that can be tested through experiments or observations, allowing scientists to gather data and analyze results.
Step-by-step explanation:
When applying the scientific method, it is important to formulate a hypothesis. A hypothesis is a proposed explanation or prediction that can be tested through experiments or observations. It helps guide the research and investigation process to obtain reliable and valid results. By testing the hypothesis, scientists can gather data and analyze whether it supports or contradicts their initial prediction.