WorksheetsGeologic Time - Study Guide
Total questions: 41
Worksheet time: 57mins
Describe how geologists separate time periods.
By special events that have happened in that period.
By looking at the Relative Time of a Fossil
By counting the years a fossil has been preserved
By the animals in the time period.
How old do Paleontologists believe the Earth is?
2021 years old
4.6 million years old
4.6 billion years old
3.6 billion years old
Name the 4 time frames in order from oldest to youngest.
Precambrian Time, Paleozoic Era, Mesozoic Era, Cenozoic Era
Mesozoic Era, Precambrian time, Cenozoic Era, Paleozoic Era
Paleozoic Era, Mesozoic Era, Precambrian Time, Cenozoic
The time span that lasted the longest was the...
Precambrian
Mesozoic
Paleozoic
Cenozoic
What are fossils that are abundant, easily recognizable, short lived, and widespread called?
Preserved fossils
Index fossils
Imprints
Radioactive dating
What does absolute age tell us about a rock layer or fossil?
The 'exact' age of a fossil determined by radiometric dating
The relative age of a fossil determined by radiometric dating
Younger rock layers sit on top of older rock layers
Older rock layers sit on top of younger rock layers
a model scientists use to describe the timing of events and the relationships between those events in earth’s history.
geologic time scale
era
period
epoch
Saying you are older than your sister is an example of _______.
absolute age
relative age
The end of life for a group of organisms, usually a species, is called a ___________.
wipeout
mass extinction
meteorite
dying off
What era did trilobites, fishes, and other marine organisms dominate?
Precambrian
Paleozoic
Mesozoic
Cenozoic
Dinosaurs, small mammals, and birds are found in this time period
Precambrian
Paleozoic
Mesozoic
Cenozoic
Which era is the most recent, the one that we are currently in?
Mesozoic
Paleozoic
Cenozoic
Precambrian
Which Era occurred last (most recent)?
Cenozoic
Mesozoic
Paleozoic
Which rock strata is the youngest?
A
B
C
D
E
Which rock strata is the oldest?
A
B
C
D
E
Putting laundry in the basket over time best illustrates which rocking dating law?
Radioactive dating.
Law of superposition.
Law of crosscutting.
Law of inclusion.
Dinosaurs and early human ancestors coexisted at one time.
True
False
Which type of rock do fossils form in?
Sedimentary
Intrusive igneous
Extrusive igneous
Metamorphic
Which of the following does NOT preserve fossils?
Amber (tree sap)
Tar
Ice
Magma
What scientific law tells us that in rock strata, the oldest layer is at the bottom and the youngest layer is at top?
Cross-cutting
Original Horizontality
Superposition
Unconformities
What scientific law tells us that if one rock layer crosses over other layers, then that layer of rock will be younger than any rock layers that it crosses?
Cross-cutting
Original Horizontality
Unconformities
Inclusions
List from youngest to oldest
BAECD
DCEAB
CEABD
ACEDB
The _________ was used as a prime location to see rock strata
Yosemite
Grand Canyon
Death Valley
Muir Woods
The Andes Mountains in South America contain dozens of fossils of marine animals. How might you have described the landscape of the Andes mountain area long ago? What type of environment was it long ago.
Marine animals lived on land.
The Andes Mountains once were under water.
The Andes Mountains were formed by an earthquake.
Burgess Shale Park was an ancient ________.
Sea
Mountain
Forest
Desert
The Law of Superposition states
Younger rocks layers are on top of older rock layers
Fossils are found in sedimentary rocks
Older rock layers are on top of younger rock layers
Absolute age dating
The end of the Mesozoic Era was most likely caused by?
A meteor
Too much oxygen
Lowering sea levels
An ice age
What two methods are used for determining the age of rocks and fossils?
Relative and Absolute Dating
Carbon and Water Dating
Sedimentary and Igneous Rocks
Spatial and Layered Dating
The intrusion is older than layer C.
true
false
These are the preserved remains or evidence of ancient living things.
fossils
corals
teachers
rocks
boomers
Index fossils are like a "bookmark". Why is this true? Por que los fosiles indice son como un marcador de libros?
They "mark" where in the geological timescale nearby fossils and rocks are, just like "marking" a page in a book
They refer to a specific time period, just like a bookmark is only referring to one specific page in the book
They are a "shortcut" so that geologists do not have to radiometric date, just like you don't have to read the whole chapter to see where you left off
Rock layers are called __________.
data
cake
strata
fossils
The geologic time scale is used to organize Earth’s history based on strata and the fossil record.
True
False
Most of the rock exposed on the Earth’s surface are sedimentary rocks.
True
False
The ______________________ states that as layers accumulate over time, the rock at the bottom is older than the rock toward the top.
law of inertia
law of gravity
law of superposition
Which layer is the oldest?
Layer A
Layer B
Layer C
Layer D
Which layer is the youngest?
Layer A
Layer B
LAyer C
Layer D
How prepared are you for the summative next week?
We have a Summative next week??!!
I need to study a lot to be prepared to complete the CER for the summative next week
I am almost ready to complete the CER for the summative next week
I am ready to write my CER for the test !!!
