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mold a fossil that formed when an organism pressed into mud, leaving a shape that hardened in rock
evidence information and facts that help prove something or make you believe that something is true
index fossil a fossil of a known age that is used to figure out the age of the rock around it
imprint a mark made by pressing or stamping something on the surface
replace to put one thing in place of another (a petrified fossil forms when the hard parts of an organism are replaced by minerals. the fossil looks like a bone or tree trunk, but is made of rock.)
fossil fuel a fuel that formed from the decayed remains of ancient plants and animals
trace fossil a footprint, track, or burrow made by an organism and preserved in rock
petrified fossil a fossil that formed when the hard parts of an organism were replaced by minerals
paleontologist a geologist who specializes in fossils
sediment bits of rock, soil, sand, shells, and the remains of orgaisms
Created by: Lucia Casini