Lesson eight in our Astronomy book was on space rocks. To go with our lesson we made a model of a comet nucleus from ice and sand. I found this idea here at Creekside Learning. First we had to crush up some ice, here’s a really blurry picture of the kids working on it. We placed the ice on an already dented baking tray, covered it with a dish towel and hammered away. Who needs an icemaker?
We added some sand from our sandbox (which also had some leaves and such in it). We placed it all in a Pyrex bowl, added a bit of water and put it in the freezer. When we got it out a few days later it looked like this:
All the sand had sunk to the bottom of the bowl. We’d already covered the lesson in Apologia, so on this day we just read a bit about comets from a library book I had on hand. Then let the kids play and explore.
This would have been more fun outside on a warm day. But the weather here can’t yet decide for sure that it’s spring! Jitterbug especially liked it, I’ll have to remember to do that ice block thing for him this summer.