Answer:
Hypothesize that the ants are following a scent trail that the first ant left.
Explanation:
The scientific method can be defined as the manner or set of ground rules employed in a scientific investigation in order to obtain the most reliable results as possible. However, the scientific method is somewhat more subjective, or implicit, in the scientific way of thinking than a manual with explicit rules about how the scientist or another should act.
Generally, the scientific method includes some steps such as observation, hypothesis formulation, experimentation, interpretation of results and, finally, conclusion. The student, exposed in the question, already made the observation, when he realized that ants do exactly the same track as an ant did before; The next step in the scientific method this student must do is to create a hypothesis. This student's hypothesis should ask whether ants are following a scent trail the first ant left.
