"Text and activities, primary to advanced, explore various aspects of the earth, including rocks and minerals, forces that change the landscape, fossils, and the structure and movement of the earth."
"Includes activities to aid the study of geology. For elementary to junior high levels."
"Includes activities to aid the study of geology. For elementary to junior high levels."@en
"Text and activities explore various aspects of the earth, including rocks and minerals, forces that change the landscape, fossils, and the structure and movement of the earth."@en
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