the universe
![Blue logo for online workshop recordings](https://nisenet.org/sites/default/files/styles/curated_list_large/public/2020-12/online-workshop-recordings-logo.jpg?itok=9FGQyoMy)
Online Workshop Recording: The Science Behind the 2019 Explore Science: Earth and Space Toolkit - Exploring the Universe
Online professional development workshop recording (2019).
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![Learners pull on elastic bands to simulate the stretching of the universe](https://nisenet.org/sites/default/files/styles/curated_list_large/public/expanding_activity.jpg?itok=hhho-4X-)
Exploring the Universe: Expanding Universe
In this activity, learners pull at the edges of a stretchy model universe and see that the space between objects in the universe is expanding.
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