Messages in the Sand
Students investigate samples to learn what sand can tell us about ocean life and the geology of our island home. Students compare the content, color, size, and weight of sand samples to draw conclusions about the parent rocks and the type of erosion that produced the sand. Through these investigations, students see how our sandy beaches are the result of interactions between rocks in the geosphere, life in the ocean from the biosphere, and waves from the hydrosphere.
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