An Open and Shut Mystery
This sea creature has a soft body and wears a shell. The part of the creature you see helps to protect the soft parts of the animal. It also helps the animal avoid drying out if the tide goes out, leaving it out of water for awhile. To what creature does this belong? What is this part?
Maybe this photo will help. While Ron was visiting, he borrowed a larger shell from Mrs. Taylor's class to show us how the little piece works.