The Expanded Universe: Playing with Time Activity Guide
About Educational Resource
In this activity, participants use balloons to model the expansion of the universe and observe how expansion affects wavelengths of light and distance between galaxies.
Participants will learn:
- The universe is expanding and has done so since the big bang.
- As the universe expands, the distance between the galaxies increases.
- Light from galaxies stretches – the wavelength of light increases – as the universe expands and the galaxies move apart.