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WorksheetsGeologic Time
Total questions: 19
Worksheet time: 18mins
Rock strata is...
layers of rock.
types of rocks.
the strategy of rocks.
straight rocks.
When looking at layers of rock we would call them...
rock strata.
sedimentary rocks.
metamorphic rocks.
fossils.
Stratification is...
spreading something out horizontally.
stacking something into horizontal layers.
stacking something into vertical layers.
spreading something vertically.
This would be an example of...
horizontality
verticality
stratification
a rock
Used to determine whether an object is older or younger than other objects
Evolution
Relative Dating
Fossil
Unconformity
How do geologists use relative dating?
Placing rocks in order from oldest (below) to youngest (above)
Placing rocks in order by minerals they contain
Classifying rocks by different textures
Classifying rocks by different isotopes
What will most likely happen to a species of fish if all the female fish are caught?
The male fish will move away.
The male fish will build homes to raise their young.
The species will go extinct.
The young fish will starve.
The gradual change in species over time is...
Evolution
Extintion
Law of Superposition
Stratification
An example of evolution of an animal could be...
horse looking animals were very small and over thousands of years horses are now large.
Great white sharks have essentially been the exact same for 350 million years.
an Apatosaurus not getting enough food leaves and dying.
a sabertooth tiger hunting using camouflage to hide in the bushes.
What patterns can you identify from this graph? (multiple)
The biggest extinction event was 250 million years ago
There were no species on Earth after the extinction of the dinosaurs at the end of the Cretaceous.
From 250 to 200 million years ago more and more extinctions occurred.
From 250 to 200 million years ago less and less extinctions occurred.
What patterns can you identify from this chart? (multiple)
Humans and dinosaurs lived during the same time
A possum relative and dinosaurs lived during the same time.
Amphibians show up earlier than reptiles in the fossil record.
Sharks showed up earlier than amphibians in the fossil record.
According to this timeline of Earth's history (0-4.56 billion years) when did Cells with a nucleus first show up in the fossil record?
2.3 million years ago
2.6 thousand years ago
2.3 billion years ago
2.6 billion years ago
According to this timeline of Earth's history (0-4.56 billion years) when did hard shelled animals first show up in the fossil record?
0.4 million years ago
0.6 thousand years ago
0.4 billion years ago
0.6 billion years ago
This Geologic Time Scale separates Earth's timeline into mainly Era's, Periods, and Epochs. During which Era did the first record dinosaurs appear?
Precambrian
Mesozoic
Triassic
Paleozoic
This Geologic Time Scale separates Earth's timeline into mainly Era's, Periods, and Epochs. During which Period did the first record of trilobites occur?
Precambrian
Cambrian
Jurassic
Paleozoic
How do scientists make geologic time scales?
Relative Ages of Rocks & Fossils
How animals evolve
Types of Rocks in Nature
Bones
