Final answer:
Jun did not waste her time with impractical ideas during her brainstorming session because brainstorming is about considering all possibilities to foster creativity and refine viable options.
Step-by-step explanation:
The question at hand is whether Jun wasted her time by including impractical ideas in her brainstorming session for a science project. The correct answer is a. No, the purpose of brainstorming is to consider all ideas. During the brainstorming process, it is essential to generate a wide variety of ideas without immediate judgment regarding their feasibility. This unfiltered exploration is critical to the creative process, as it can lead to innovative solutions and helps in refining the scope of the project. Even ideas that are later discarded can be valuable, as they might provide insight or lead to viable alternatives. Consequently, these impractical ideas contribute to the critical thinking and problem-solving experience.