1. Compare the set of data in column 2 with the set of data in column 5. Justify.2. What conclusion can be drawn about the universe based on the activity?
Answer (1)
Model the Expanding Universe – Science Lesson | NASA JPL ...The activity described, likely involving a balloon and dots, demonstrates that as the "universe" expands (balloon inflates), the distances between objects (dots) increase, and this increase is proportional to the initial distance between them. This is analogous to the expanding universe, where galaxies move further apart over time. Comparison of Data (Column 2 vs. Column 5): The core concept of the activity is to observe how distances change as the balloon expands. Let's assume: Column 2: Represents the initial distance between two dots on the deflated balloon.Column 5: Represents the distance between the same two dots after the balloon is inflated.Column 3 and 4: Likely represent the initial and final distance from a central dot, or some other reference point.The key observation is that the change in distance (Column 5 - Column 2) will be greater for dots that were initially farther apart. This is because the expansion of the balloon stretches the distances proportionally. Conclusion about the Universe:The activity provides a visual and conceptual model for understanding the expanding universe theory. The key conclusions are:1. Expansion:The universe is not static; it is expanding, meaning the average distance between galaxies is increasing over time. 2. Proportional Expansion:The rate of expansion is roughly proportional to the distance between objects; galaxies farther apart are receding from each other faster. 3. No Center:The expanding balloon model illustrates that the expansion doesn't have a center; every point on the surface (galaxy) sees other points moving away from it. 4. Implications for the Big Bang:The expansion of the universe, as modeled by the balloon, supports the Big Bang theory, which proposes that the universe originated from an extremely hot, dense state and has been expanding ever since.
