WorksheetsEarth Midterm Review 2021
Total questions: 140
Worksheet time: 1hrs 10mins
The solar system formed ______ years ago.
4.5 billion
5.5 billion
6.5 billion
The solar system formed ______ years ago.
4.5 billion
5.5 billion
6.5 billion
____________ is the process found in stars where heavier elements are formed by squeezing smaller nuclei together.
Fusion
Radioactivity
fission
Planets formed from a nebular cloud of _________________.
gas and dust
ice and chemicals
frozen hydrogen and gas
Evidence for Earths age:
(a) subject to extensive erosion.
Evidence for Earth's age:
Radioactive (a) & meteorites
____________ drives plate tectonics.
heat
lava
water
Heat inside the Earth is from ______________ decay.
radioactive
dead animal
plant matter
__________ is the passage of energy by direct contact.
conduction
convection
_________ is the transfer of energy through fluids in which heat rises and cool material sinks.
conduction
convection
______________ planets are less than 2AU from the sun. AKA rocky planets.
Terrestrial
Jovian
______________ planets are greater than 3AUs from the sun. AKA Gas planets composed of ice and ammonia.
Terrestrial
Jovian
Earth's layers include:
inner core
outer core
mantle
crust
mountains
Earth's layers are formed by _________________, a process of settling density.
differentiation
speciation
planets crashing
_____________________ data has helped scientist in learning about Earth's layers.
earthquake
hurricane
tornado
Earth's ____________________ is evidence for its spinning, liquid, metal core.
magnetosphere
megladon
tectonic plants
3 types of ____________ match the three layers of Earth.
meteorites
stars
comets
Check the terrestrial planets in our solar system:
Earth
Mercury
Uranus
Venus
Mars
Check all of the Jovian planets in our solar system:
Uranus
Mars
Saturn
Jupiter
Neptune
______ layers are very similar to Earth's but it is no longer geologically active because is it smaller and has cooled much faster.
Mercury
Mars
Venus
Jupiter
Positive charge & atomic number
protons
neurtons
electrons
Negative charge, same number as protons.
protons
neutrons
electrons
How many neutrons does Oxygen-18 have?
Atomic Number of Oxygen: 8
Atomic Mass of Oxygen: 16
10
8
6
4
Radioactive decay happens when a ___________ is unstable and breaks apart releasing energy in the form of radiation.
nucleus
atom
cell
First atmosphere:
Helium & Hydrogen was blown away because Earth's gravity was too weak .
carbon dioxide from out gassing
photosynthesis responsible for buildup of free oxygen in Earth's atmosphere.
Second atmosphere:
Helium & Hydrogen was blown away because Earth's gravity was too weak .
carbon dioxide from out gassing
photosynthesis responsible for buildup of free oxygen in Earth's atmosphere.
Third atmosphere:
Helium & Hydrogen was blown away because Earth's gravity was too weak .
carbon dioxide from out gassing
photosynthesis responsible for buildup of free oxygen in Earth's atmosphere.
Increased photosynthesis indicated increased ________ life.
plant
animal
Oxygen levels decreased as life forms utilizing oxygen ____________.
increased
decreased
Early fresh water oceans became salty as water carried salty ___________ to the deltas and then the oceans.
sediment
trees
animals
Control Variable:
held constant in order to determine the relationship between two other variables.
variable in experiment that is measured.
variable in experiment that scientist alters.
Dependent Variable:
held constant in order to determine the relationship between two other variables.
variable in experiment that is measured.
variable in experiment that scientist alters.
Independent Variable:
held constant in order to determine the relationship between two other variables.
variable in experiment that is measured.
variable in experiment that scientist alters.
Fossils provide clues about all of the following except:
Past geological events
Predicating Natural Disasters
Past climates
Evolution of living things
Warm water coral fossils have been found in Alaska. This evidence suggest __________________.
Alaska had a tropical marine environment.
Alaska will soon be under water.
Alaska has always been above water and cold.
The coral migrated to Alaska for the winter.
____________ fossils are clues to the relative age and absolute ages of rocks.
Trace
Index
Index fossils are almost always found in which type of rock?
Sedimentary
Metamorphic
Igneous
Which came first, giant insects or sea scorpions?
Giant Insects
Sea Scorpions
Index Fossils
A fossil that scientists use to date rocks; they are found widely scattered in rocks over a large region existed for a geologically short time.
A feature in sedimentary rocks that resulted from the activity of an animal, e.g. a worm cast or footprint.
Trace Fossils
A fossil that scientists use to date rocks; they are found widely scattered in rocks over a large region existed for a geologically short time.
A feature in sedimentary rocks that resulted from the activity of an animal, e.g. a worm cast or footprint.
An unconformity (disturbance in the horizontal deposition of a layer) or __________________ is responsible for the sudden absence of a fossil which had been present through many rock layers.
Extinction
Succession
Law of Superposition
Index Fossils
Radioactive dating can be used to determine ________________ (the numeric age of an event established an absolute-dating process such as radiometric dating) as radioactive substances decay at a predictable rate.
Relative Age
Absolute Age
Extinction Rates
Natural Disasters
Which period did giant insects appear?
Mississippian
Pennsylvanian
Cambrian
The period of the oldest Trilobite:
Jurassic
Quaternary
Cambrian
Triassic
The approximate age of the primitive fishes
100 mya
375 mya
837 mya
100,000 mya
Which mass extinction is nicknamed "The Great Dying." 95% of life on Earth became extinct.
1
2
3
4
5
Which is the shortest era?
Paleozoic
Mesozoic
Cenozoic
Which mass extinction resulted in the end of the dinosaurs?
1
2
3
4
5
Using Figure E, understand this diagram is showing undisturbed _________________ layers indicating more recent forms of life may have evolved from earlier forms of life
Sedimentary
Metamorphic
Igneous
During which period did pollination most likely begin?
Quaternary
Cretaceous
Permian
Precambrian
During what period did birds and small mammals appear?
Jurassic
Cambrian
Carboniferous
Pleistocene
Precambrian
During what period did reptiles first appear?
Jurassic
Precambrian
Carboniferous
Pleistocene
In order to determine an area's ancient environmental conditions and climates, scientist would best observe what?
Amount of carbon-14 found in sedimentary layers.
Banding patterns of metamorphosed rocks.
Present plant and animal life.
Type and distribution of fossils.
Earth scientists studied fossils of a certain type of plant. They noted slight differences in the plant throughout geologic time. What inference is best made from this evidence?
When the environment changed, this type of plant could accommodate the change and flourished.
When uplifting occurred, the fossils of this type of plant were deformed.
The fossils have changed as a result of weathering and erosion.
Which is an example of a trace fossil?
T Rex tooth
Leaf impression
A saber tooth tiger footprint
Mosquito stuck in amber
Which rock type is the youngest?
Limestone
Shale
Igneous Rock Formation
Contact Metamorphism
Which geologic even occurred first (oldest)?
W
X
Y
Z
What do the little "whiskers" on the intrusion mean?
Contact metamorphism
Indicates the type of rock
Indicates the direction of the intrusion
Disconformity
What type of unconformity occurs between layers B and C?
Angular Unconformity
Disconformity
Paraconformity
Nonconformity
What is the best explanation for the irregular surface between layers B and C?
Some sort of igneous intrusion
A river was flowing
Erosion
Uplift by plate tectonics
What law explains that layer 1 is the oldest and layer 6 is the youngest?
Superposition
Original Horizontality
Uniformitarianism
Cross-Cutting Relationships
Which layer(s) were uplifted?
A
B
D
Why are the layers no longer horizontal?
Sediment is Forming
Igneous Intrusion
Erosion
Uplifting
Does this show a dome or a basin?
Dome (because it is in shape of a ring)
Dome (the oldest layer is in the middle)
Basin (because the lines curve downward)
Basin (because the youngest layer is on top)
What happened to the missing rock (shown by dashed lines)?
Erosion
Uplifting
Contact Metamorphism
Volcanic Activity
Is this an Anticline or a Syncline?
Anticline
Syncline
What type of rock will not contain fossils?
Igneous
Limestone
Sandstone
Siltstone
How do you know there is a fault shown?
The curvy lines
The darker area in the middle
You don't, you can only see a fault when looking at a cross section
The line with the "teeth"
The theory stating geological processes that took place in the past are generally similar to those that occur now.
Principle of Superposition
Unconformity
Uniformitarianism
Disconformity
A principle holding that in a vertical sequence of undeformed sedimentary rocks, the relative ages of the rocks can be determined by their position in sequence-oldest at the bottom followed by successively younger layers.
Angular Unconformity
Law of Superposition
Intrusion
Law of Lateral Continuity
Which type of Unconformity does the image represent?
Disconformity
Nonconformity
Angular Unconformity
Paraconformity
An unconformity in which stratified sedimentary rocks overlie an erosion surface cut into igneous or metamorphic rocks.
Nonconformity
Paraconformity
Angular Unconformity
Disconformity
A geologic feature in which molten rock has been injected into pre-existing rock.
Uniformitarianism
Law of Superposition
Intrusion
Law of Lateral Continuity
Layers of sediment are originally deposited horizontally under the action of gravity.
Law of Superposition
Law of Original Horizontality
Uniformitarianism
Law of Lateral Continuity
The disconformity (the erosion surface) is parallel to the layering of both rock layers.
Disconformity
Angular Unconformity
Nonconformity
Paraconformity
Near which city would you expect to find dinosaur fossils?
Atlanta
Columbus
Dalton
Savannah
Near which city would you expect to find trilobite fossils?
Dalton
Columbus
Atlanta
Savannah
Using the geologic map shown, which rock was the last to form?
1
2
3
4
The layered sediments slope away from the center of the arch because __________.
The geologist did not interpret them correctly
A force caused them to bend after they were deposited
The layers were broken by an earthquake
B represents which type of rock?
Sedimentary
Metamorphic
Igneous
A represents which type of rock?
Sedimentary
Igneous
Metamorphic
C represents which type of rock?
Sedimentary
Igneous
Metamorphic
Identify the correct feature: B
Magma rises
Subduction zone
Magma pushes out and sideways
Seafloor spreads, new crust formed
Identify the correct feature: C
Magma pushes out and sideways
Subduction zone
Magma rises
Seafloor spreads, new crust formed
Which type of mountain is illustrated in Picture B?
Dome
Fault-Block
Folded
Volcano
Which type of mountain is illustrated in Picture A?
Folded
Volcano
Fault-Block
Dome
Which type of mountain is illustrated in Picture D?
Volcano
Fault-Block
Dome
Folded
Which type of mountain is illustrated in Picture C?
Fault-Block
Dome
Volcano
Folded
Which type of boundary does this picture represent?
Convergent
Divergent
Transform
Which type of boundary does this picture represent?
Transform
Divergent
Convergent
Which type of boundary does this picture represent?
Transform
Divergent
Convergent
Which type of FORCE does this picture represent?
Constructive
Destructive
Neutral
Which type of FORCE does this picture represent?
Neutral
Constructive
Destructive
Which type of FORCE does this picture represent?
Destructive
Neutral
Constructive
Which type of STRESS does this picture represent?
Compression
Shear
Tension
Which type of STRESS does this picture represent?
Shear
Compression
Tension
Which type of STRESS does this picture represent?
Tension
Shear
Compression
Which FEATURE/LANDFORM would this boundary create?
Rift Valleys
Offset Geology
Folded Mountains
Which FEATURE/LANDFORM would this boundary create?
Mid Ocean Ridges
Offset Geology
Fault-Block Mountains
Which FEATURE/LANDFORM would this boundary create?
Rift Valleys
Folded Mountains
Offset Geology
Why are there mountains forming at Location A?
Because this is an example of a divergent boundary.
Because this is an example of a transform boundary.
Because this is an example of a convergent boundary.
Where on the map would you most likely find an ocean ridge?
Location A
Location B
Location C
Where on the map would you most likely find MAFIC minerals?
A & C
B & D
A & B
B & C
Where on the map would you most likely find FELSIC minerals?
A & C
A & B
B & D
B & C
Which type of rock would you find at this plate boundary?
Igneous
Sedimentary
Metamorphic
Which type of rock would you find at this plate boundary?
Sedimentary
Igneous
Metamorphic
Minerals whose chemical composition are temperature sensitive
Isostacy
Geothermometers
Foliation
Fault
Young mountains are ____________ and older mountains are ___________.
Steep, Rounded
Rounded, Steep
Elastic energy is energy stored in rocks in the form of
potential energy
kinetic energy
energy rebound
Earthquakes happen because rocks__________ along fault lines and there is a sudden release of energy.
shift
fall
collide
Earthquakes occur in the Earth's ____________.
core
mantle
crust
Earthquakes are associated with _________ or plate boundaries.
faults
rifts
convergent boundaries
They are the FIRST waves of an earthquake to be detected. They move in a back and forth motion parallel to the waves and can move through solids, liquids and gas.
P-waves
S-waves
Surface waves
seismic waves that travel along the surface of a medium and arrives after the P and S waves.
p-waves
s-waves
surface waves
C in this picture is a _______ wave.
p-wave
s-wave
surface wave
B in this picture is a _______ wave.
p-wave
s-wave
surface wave
_________Waves - Side-to-side - not vertical. Ground twists
hate
love
indifferent
__________ Waves - Rolling motion
Love
rayleigh
hate
Which wave type is MOST destructive?
s-waves
p-waves
surface waves
A ______________is a gigantic succession of ocean waves formed after a volcanic eruption, submarine earthquake or landslide—not a tidal wave.
tsunami
hurricane
volcano
________________-a measurement system that bases earthquake strength on ground motion
Richter scale
Modified Mercalli Scale
Moment magnitude scale
increases by 10 for every increase in level.
Richter scale
Modified Mercalli Scale
Moment magnitude scale
a measurement system that expresses earthquake intensity in Roman numerals and describes the EFFECTS OF THE EARTHQUAKE.
Richter scale
Modified Mercalli Scale
Moment magnitude scale
Measures the strength of an earthquake; related to energy released; measurements on seismograph
intensity
magnitude
Which is furthest?
A
B
C
D
Which is closest?
A
B
C
D
Point at the depth where the rocks ruptured to produce earthquakes; place where quake waves originate
focus
epicenter
Location on the surface directly above the focus
focus
epicenter
Which statement explains why Station X does not receive S waves?
S waves cannot travel through Earth's liquid outer core
Station X is too far for S waves to travel
S waves traveled too slowly to detect
What type of waves might we expect at station Y?
Both P and S waves
p waves only
depends on the weather
This diagram implies that seismic waves produced by earthquakes:
are not felt everywhere, every time
Are always felt and recorded in all locations
Cannot be determined by this illustration
Identify the magma dome.
Q
P
R
S
T
Identify the conduit or pipe.
Q
P
R
S
T
Identify the conduit or pipe.
Q
P
R
S
T
Identify the side vent.
Q
P
R
S
T
The partial melting of the mantle and crust will produce
magma that may erupt to form volcanic mountains on Earth’s surface
atmospheric changes that can eventually cause mountains to form
Folded mountains on the Earth’s surface
A large depression formed by the collapse of a volcanic cone is called a:
caldera
pluton
valley
Areas of volcanism away from plate boundaries are called:
hot spots
calderas
fissures
What are the most common gasses trapped in magma
water vapor and carbon dioxide
sulfur dioxide and water vapor
The belt of volcanoes that encircles the Pacific Ocean is called
The Ring of Fire
the Great Pacific Trench
Te Kā
