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GS Module 7

Apologia General Science Module 7

Fossil The preserved remains of a once-living organism
Mold In paleontology, the impression formed when an organism is surrounded by rock before it decomposes.
Cast In paleontology, the shape formed when sediments or magma fill a mold.
Petrifaction The conversion of organic material into rock.
Carbonization The process by which an organism's remains are converted to a filmy residue that leaves a flattened "drawing" of the organism in the rock.
Resin A thick, slowly flowing liquid produced by plants that can harden into a solid.
Fossil record The sum total of all discovered fossils.
Extinct A term applied to a species that was once living but now is not.
Trilobites Creatures that once lived in water.
Placoderms Strange-looking fish that are assumed to be extinct.
Created by: cladnr