2021 Maurice Hillman Essay Contest - April 2021

Observing and Sorting Rocks

by: John Eichinger

In this activity, students examine garden variety rocks, classifying them based on observable properties. This lesson teaches students not only about rocks but also about how to take a closer look at objects and materials that they encounter every day. Students are encouraged to notice details that they may have previously overlooked. Students observe, test, and sort a collection of rocks using a variety of criteria including hardness, texture, luster, reaction to weak acid, magnetic attraction, and density. They then use Venn diagrams to group similar rocks.

Level

Elementary School

Details

Type Book ChapterPub Date 5/15/2009Stock # PB236X_15

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