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Fossils Study Guide



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

What natural preservative have scientists discovered fossils inside of ?
a.
tar
c.
ice or frozen ground
b.
amber
d.
all of these
 

 2. 

Trace fossils are
a.
silhouettes of the orignal organism
c.
fossilized footprints, tail drags, or other evidence of an organism
b.
fossils that are traced in rock
d.
fossils scientists use to determine the age of rocks around it
 

 3. 

What can scientists learn from fossils?
a.
when did plants and animals first live on land
c.
when some organisms become extinct
b.
how long has life been on Earth
d.
all of these are correct
 

 4. 

Why do many organisms leave carbon films as evidence of their lives?
a.
because most living things contain carbon
c.
because the tissues of most organisms are made of nitrogen compounds
b.
because the bones and tissues of most organisms do not contain carbon
d.
most organisms that change into fossils actually burn up leaving behind carbon
 

 5. 

What is a carbon film?
a.
a cast of the orginal organism made of carbon residue
c.
a silhouette of the original organism made of a thin film of carbon
b.
a mold of the orignal organism made of carbon residue
d.
a silhoutte of the orignal organism made of a thin film of nitrogen
 

 6. 

What are index fossils?
a.
the footprints of an extinct organism
c.
fossils that have tiny numbers engraved upon them
b.
the shape of a fossil found in rocks
d.
fossils that we know when they existed and were found all over the world
 

 7. 

Which of these is the most important whether or not an organism will become a fossil?
a.
the type of soil it is buried in
c.
its chemical makeup
b.
how well it is protected from scavengers, decomposers, and physical agents that break things down
d.
the weather conditions at the time of death
 

 8. 

How is sediment transformed into rock?
a.
compaction and cementation
c.
heat and pressure
b.
cementation
d.
compaction
 

 9. 

When an organism gets buried, its body will disappear leaving behind its shape inside the rock.  This hollow shape is called..
a.
the mold
c.
the cast
b.
a trace fossil
d.
carbon film
 

 10. 

Which of these does NOT affect how a fossil is formed?
a.
activities of microorganisms
c.
having hard parts
b.
quick burial by sediments
d.
being protected from scavengers
 

 11. 

What kind of rock are most fossils found in?
a.
gravel
c.
sedimentary
b.
igneous
d.
metamorphic
 

 12. 

What does a paleontologist study?
a.
life
c.
plants
b.
dinosaurs
d.
fossils
 



 
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