This is a picture of a geologist examining the history of a volcano from the surrounding earth.
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Image from: U.S. Geological Survey, photo by Robert McGimsey
The Earth is covered with the remains of ancient lava flows. This geologist is studying the ground near a volcano.
Shop Windows to the Universe Science Store!
Learn about Earth and space science, and have fun while doing it! The games
section of our online store
includes a climate change card game
and the Traveling Nitrogen game