Our Changing Earth

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Archeologist

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a scientist who studies objects such as pottery, tools, and structures, from past human life to better understand their culture

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Deposition

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When sediment, soil, or rock are carried from one location to another from wind, water, ice, or gravity.

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Earthquake

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The sudden shaking of a ground surface from within the earth’s crust sometimes caused by volcanic activity.

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Fossil

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preserved remains of an ancient plant or animal found within a rock

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Geologist

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a scientist who studies rocks and soil to better understand earth’s history

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Glacier

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A very large slow moving area of ice

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Ocean Trench

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very long narrow depressions along the deepest points in the ocean floor

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Paleontologist

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a scientist who studies fossils of ancient plant and animal life to understand earth’s past

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Ring of Fire

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An area around the Pacific Ocean where many earthquakes and volcanic eruptions take place

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Sediment

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soil, rock, or silt that was moved by wind or water through erosion