Students are using balloons to describe the expanding universe model. The students blow up several balloons and put them on the floor. Each balloon represents a different galaxy.%0D%0A%E2%80%8B%0D%0A%E2%80%8BHow should the students move or change the balloons to demonstrate how the universe is expanding?%0D%0AA%0D%0AAll of the balloons should be moved to the center of the floor.%0D%0AB%0D%0AEach balloon should be inflated more so that they are all increasing in size.%0D%0AC%0D%0AEach balloon should be deflated so that there is more distance between the surface of each balloon.%0D%0AD%0D%0AAll of the balloons should be moved away from each other so there is more distance between them.
1 answer
The correct way for the students to demonstrate how the universe is expanding is:
All of the balloons should be moved away from each other so there is more distance between them.
This approach effectively illustrates how galaxies in the universe are moving away from each other as the universe expands. Just like the balloons, which represent galaxies, as the universe grows, the space between galaxies increases.
