Fossils Check-In 3/17

The formation of rock layers based on evidence is called ______.

• Law of Superposition

• Igneous Intrusions

• Relative Age Theory

• Evolution

Which is NOT true about extinction ____.

• Extinction of species is common.

• Extinction of organisms is apparent in the fossil record.

• Most species that have lived on Earth are now extinct.

• Organisms that lived long ago are not similar to existing organisms.

Match the following

• When mud or sand hardens to stone where a footprint, trail, or burrow of a left-behind organism.

• Trace Fossil

• Forms when organisms or parts are pressed between layers of mud or clay leaving an imprint.

• Carbonized Fossil

• When sediments bury an organism and changes to rock leaving a cavity shaped like the organism.

• Cast Fossil

• When a mold fossil is filled with sand or mud that hardens in the shape the organism.

• Mold Fossil

• Forms when minerals soak into the buried remains, replaces the remains, and changes them into rock.

• Petrified/Permineralized Fossil

The Law of Superposition says that the rocks at the bottom of the stack are _____ and the rocks on the top are _____.

• oldest, youngest

• youngest, oldest

The illustration is an example of a(n) ______.

• preserved fossil

• amber fossil

• permineralized fossil

• cast fossil

Put the sequence in order from 1-9 (1 being the first event and 9 being the last event).

a

b

c

d

e

f

g

h

i

7

9

2

3

4

8

1

5

6