This week, we began to study solids made of particles. We experimented with cornmeal, dry rice, and a variety of dry beans to find out how they pour and how they roll in bottles. Although these solids pour like liquids, they are different in some ways. You can rest an object on top of a pile of these solids -- you can't do that with liquid!
We also mixed these particle solids together, like a soup mix, and then used screens with different sized holes to separate the different types of solids again.
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