These sedimentary rocks are born from the decay and fossilization of marine organisms — think coral and clams. Gravel, on the ...

Chalk, limestone, shale, and sandstone are all examples of sedimentary rocks. All these different sedimentary rocks are formed from the broken remains of other rocks that become joined together.

The third graders in Adrianna Nelson’s third grade class recently learned about sedimentary rocks and explored a hands-on ...