Question

are the stickers moving across the balloon? ​

Answer 1

Answer:

Stickers stuck on the surface of a balloon represent galaxies in our Universe and the balloon itself represents space. When the balloon is blown up, it simulates how space between the galaxies is thought to be expanding.

Explanation:

Answer 2

The stickers moving across the balloon:

• The balloon model is a frequent analogy for modeling the Universe. The stickers on a balloon's surface symbolize galaxies in our Universe, while the balloon itself represents space.
• When the balloon is inflated, it represents how space between galaxies is expected to grow. (It's worth noting that the galaxies aren't all on the exterior of the Universe, as the balloon analogy implies.)
• This can be further explained with the help of a simple experiment:

Materials Required: Balloon, and star or any sticker.

Directions:

1. To begin, inflate the balloon and stretch it out a little.
2. Remove the star stickers off the balloon and deflate it.
3. Once the balloon is blown up, check about the stickers.
4. Now blow the balloon and observe what happens.

• As the balloon inflates, the star stickers appear to be moving away from each other, yet none of them are getting closer! This is to show how the universe's galaxies may be moving apart from one another.