Final answer:
Both the scientific method and the engineering and design process include the step of brainstorming to generate a variety of ideas and possible solutions for a problem.
Step-by-step explanation:
The step that exists in both the scientific method and the engineering and design process is brainstorming. This process is used to generate a wide variety of ideas and possible solutions for a given problem. In the context of engineering, this step involves brainstorm alternative solutions, using a structured approach to come up with as many ideas as possible, which are then evaluated based on requirements and constraints. In the scientific method, brainstorming can be part of the initial stages where scientists gather information, propose hypotheses, and generate ideas for experiments.