Fossils
Directions: Write the correct Earth science term from the word bank on the line next to
its definition.
1.carbon films
thin film of carbon residue forming a silhouette of the original
organism
2.permineralized remains
soft spaces inside an organism are filled with minerals from
groundwater
3.mold
hard, outer cavity in the rock where fossil has been dissolved
4.trace fossils
fossilized tracks and evidence of activity of organisms
5.index fossils
traces of species that existed on Earth, used to judge climate,
environment, and geologic time
6.cast
minerals or sediments fill a fossil mold
7.coal
totally carbonized remains, now used as fuel source
8.mineral replacement
the replacement of hard and soft parts of an organism
9.fossils
remains, imprints, or traces of prehistoric organisms
10.original remains
entire, complete organism found in amber, ice, or natural tar
pit
