Dancing Craisins Follow-Up Activity

After we completed the dancing craisins experiment, Daegan had an idea for an additional activity: “Let’s put the dancing craisins in the freezer!” When I asked him why he wanted to do this—as I must admit I thought little of the idea—he said, “I’m curious what happens to bubbly [carbonated] water when it’s frozen.” So we poured the craisins and club soda, still fizzing, into a large plastic container, and popped it in the freezer. I snapped a quick ‘before’ picture:

club soda, about to be frozen 

And am I ever glad I did! Now, I knew that water, unlike just about every other substance on earth, expanded when frozen. But I wasn’t expecting how much carbonated water expanded:

carbonated water expands significantly when frozen

We talked about water expanding, why ice floats, and how this was necessary for aquatic life to survive winters. So good on Daegan for creating this experiment and teaching us all a little bit more! The boys then wanted to take the ice out and watch it melt to see if there would be any bubbles. There’ weren’t. But they then found another way to play. Gareth said, very excitedly, “Let’s make an arctic animal habitat!” When I looked in the bowl with the ice this is what I found:

home for a polar bear

As Jim and I made dinner—curry, yum!—the boys continued to play arctic animals. It was determined in short order that the polar bear would need some food:

fish for polar bear to eat

It was decided that the fish would not be enough food for the polar bear, and that furthermore, it was not its favourite meal; seal was. But a beluga whale would happily eat the fish.

more animals

When I looked over a while later, an arctic wolf and some other kind of whale had joined the habitat:

yet more animals

As the boys played, I heard them also talk about camouflage (the wolf, the polar bear), and Jim and I commented about climate change in the arctic when the ice had melted significantly, dumping the wolf into the water. I love ‘unscripted’ moments like there when you see how much your kids have learned and love to learn, pretty much all on their own.    

This entry was posted on Tuesday, March 2nd, 2010 at 6:37 pm and is filed under Daegan, experiments, Gareth, geography, nature, science. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Dancing Craisins Follow-Up Activity”

  1. Kez Says:

    Way cool :)

  2. Educating Risa » Blog Archive » Science Fun with Ice Cubes and Salt Says:

    [...] sprinkled them with salt in a bowl, and re-froze to make a giant iceberg. They wanted to play Arctic Animals [...]

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