The Spiral Galaxy Experiment
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Our Spiral Galaxy Experiment: Stirring hole-punched paper, in a jar of water makes the paper move in a spiral, just like all of the planets and stars in a spiral galaxy, such as The Milky Way or Andromeda.
This experiment is from Janice VanCleave’s 200 Gooey, Slippery, Slimy, Weird and Fun Experiments. We used this in conjunction with The Usborne Book of Astronomy and Space, With Internet Links.