WHAT'S INSIDE: GEOLOGY

Geology is the study of the composition and physical properties of rocks, minerals, gems and other related earth materials, including diamonds and crystals. Scientists gain an understanding of the Earth's history by studying its composition.
  • Geologic Processes
  • Geologic Time Scale
  • Minerals
  • Paleontology

FEATURED: GEOLOGY

Saltpeter, the common name for potassium nitrate, a white, crystalline solid composed of potassium, nitrogen, and oxygen.

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