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Fossils Darwin Dating Methods
Geologic Time Scale
History of Life Vocabulary
Terms
This substance is formed when tree sap hardens and can sometimes contain a
fossil.
A 100
What is Amber?
A 100
This is formed when a plant or animal is buried in
sediment and leaves an impression.
A 200
What is a mold?
A 200
This type of fossil is left behind when a footprint fills
with sediment and is preserved in rock.
A 300
What is a trace fossil?
A 300
This type of fossil can be found throughout the world and are known to have lived
during a relatively short, well-defined geologic time
span.
A 400
What is an index fossil?
A 400
This type of fossil is formed when there is a filling or
replacement of an organisms tissues with minerals.
A 500
What is a petrified fossil?
A 500
This is the island chain where Charles Darwin made his most famous observations
about nature.
B 100
What are the Galapagos Islands.
B 100
This is the observation Charles Darwin made that explains how an organism with some type of genetic advantage will succeed by producing more successful
offspring.
B 200
What is natural selection?
B 200
This is the process that describes how organisms
change over time.
B 300
What is evolution?
B 300
This is a beneficial trait or mutation that helps an
organism survive when its environment changes.
B 400
What is an adaptation?
B 400
This is the name of the ship that Charles Darwin sailed
upon.
B 500
What is the H.M.S. Beagle?
B 500
This is the amount of time it takes a parent isotope to transform ½ of itself to a
daughter isotope.
C 100
What is a half-life?
C 100
Generally, this is where the oldest fossilized forms of life
are found in the Earth’s layers.
C 200
What are the lower rock layers?
C 200
This tells us how old one thing is when compared to
another.
C 300
What is relative dating?
C 300
DAILY DOUBLE
C 400
DAILY DOUBLE
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This tells us how old something is with some
degree of accuracy.
C 400
What is absolute dating?
.
C 400
The ratio of stable to unstable isotopes in a rock sample is 1:3, and the half-life is 10,000 years, this is how old your sample is.
C 500
What is 20,000 years?
C 500
This is the largest division of geologic time.
D 100
What is an Eon?
D 100
This is the second largest division of geologic time.
D 200
What is an Era?
D 200
This is the third largest division of geologic time.
D 300
What are periods?
D 300
This is the fourth largest division of geologic time.
D 400
What are Epochs?
D 400
This is the estimated age of the earth.
D 500
What is 4.6 Billion years?
D 500
These giant lizards ruled the earth during the Mesozoic Era.
E 100
What are dinosaurs?
E 100
This event normally comes before a mass extinction
event.
E 200
What is the appearance of a new life form?
E 200
E 300
The amount of time humans and their ancestors have existed upon the earth.
What is 2,000,000 years?
E 300
A prokaryotic organism that was one of the first on earth, and used photosynthesis to
produce oxygen.
E 400
What are Cyanobacteria?
E 400
This is the era when flowering plants began to
appear on the earth.
E 500
What is the Mesozoic Era?
E 500
The disappearance or “dying off” of a type of organism.
F 100
What is extinction?
F 100
The era that began about 65 million years ago and
continues today.
F 200
What is the Cenozoic Era?
F 200
This describes the principle that states things found in lower rock layers are older then things found
in upper rock layers.
F 300
What is Superposition?
F 300
The study of past life on earth.
F 400
What is paleontology?
F 400
The tallest organism ever to live on the earth.
F 500
What is the Redwood Tree?
F 500
The Final Jeopardy Category is:
Stuff that’s really, really, old.
Please record your wager.
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This predatory organism could grow up to 7 feet in length and terrorized the seas in the early
Paleozoic era?
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What is the Sea Scorpion?
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