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Handout

U.s. Geologic Survey: Rocks

Curated by ACT

What are rocks made of? Where do rocks come from? What is an igneous rock? These are just some of the questions answered by the scientists of the U.S. Geologic Survey.

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Concepts
crystals, rock layers, rocks
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Additional Tags
extrusive igneous rock, intrusive igneous rock, rock collecting, rock description, rock mineral, rocks and minerals, us geological survey, usgs, igneous rock, rock
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Classroom Considerations
  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)