https://docs.google.com/document/d/1NknkFm_nuDsUhRiSqONvmcmaKs44-o-OrBiiaKrYykM/pub
Homework
5/19 - Copy vocabulary words in NB
1. fossil -
"obtained by digging") are the preserved remains or traces of
animals, plants, and other organisms from the remote past
2. petrified remains - formed by the
replacement of original materials (like bones) by minerals.
3. carbonaceous film - carbon residue
remaining from the organism or part of an organism that has been fossilized.
4. mold - formed by the impression left
in rock by the remains of an organism
5. cast - occurs when the mold is filled in by
precipitating minerals.
6. index fossil - The fossil remains of an
organism that lived in a particular geologic age, used to identify or date the
rock or rock layer in which it is found.
7. principle of superposition - tells us that the layer on the bottom is the
oldest, and the layers get younger as they pile up.
8. relative dating - is a method of sequencing events in the
order in which they happened.
9. unconformity - A substantial break in
the succession of stratified sedimentary rocks, following a period when deposition
was not taking place.
10. absolute dating - Absolute dating is a method of
estimating the age of a rock sample in years via radiometric techniques.
