We have been having so much fun with our science unit on rocks!! We've learned that our earth is made up of rocks and that rocks can be weathered down into smaller sizes. Today, we did a hands-on experiment to see if we could sort river rocks using screens. We found out that the screens with big holes would catch the big rocks, the screen with medium holes would catch the medium rocks, and that sand easily goes through all 3 screens! Here are some pictures from our lesson!
Starting with our river rock mixture.
Our first try sorting with the big-holed screen.
We were able to catch the medium sized gravel
with our medium sized screen.
Our finished rock sort! We were successful!
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