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WorksheetsMidterm Review 24 - 25
Total questions: 37
Worksheet time: 43mins
Radioactive decay is a heat source deep within Earth. How does this process affect motion within Earth?
Density of molten rock decreases as its heated & this results in the rock being pushed above by material with a greater density
Which differences in properties of Earth’s crust and mantle are most responsible for tectonic activity?
The differences in temperature and viscosity
Which layer of Earth makes up the smallest percentage of the planet’s mass?
Which layer of Earth is the source of lava that erupts from volcanoes?
Mantle/Asthenosphere
Earth’s mantle, primarily composed of silicate and magnesium oxide rocks, floats on top of the liquid iron and nickel outer core. Which difference between these two layers of Earth resulted in their differentiation?
Age
Velocity
Density
Viscosity
List the evidence that supported Alfred Wegener’s theory of continental drift?
What is the location of the youngest rock on the Atlantic ocean floor?
closest to the Mid-Atlantic Ridge
What causes the oceanic crust to be pushed under continental crust?
oceanic crust is more dense than continental crust
The Himalayan mountain range is the result a (a) plate colliding with a (b) plate at a (c) boundary
The Mariana islands are volcanic islands that form an arc. The island arc is located in the North Pacific Ocean. These islands were formed by converging tectonic plates. Describe the process that had to occur for the islands to form.
The Mariana Islands were formed by melting of oceanic crust at subduction zones
Which plate interaction is most likely associated with the formation of non-volcanic mountains?
Oceanic-oceanic convergent
Continental-continental convergent
List the landforms that can be made from a convergent boundary
A volcano found in the center of a tectonic plate tends to be a result of which phenomenon?
What tectonic plate movement will cause a rift valley to form?
While the Earth was forming, why did all of the iron become concentrated in the planet’s core?
All of the iron became concentrated in the planet’s core due to its high density
What does the law of superposition tell us about the age of rock layers of the Earth?
Which dating method would be best for scientists to use to determine the absolute age of a Precambrian igneous rock?
Radioactive dating
Relative dating
The radioactive isotope content of a rock can be used to identify which property of the rock?
Certain fossils can be used to help determine the age of the rock layer in which the fossils are found. Which type of fossil is best to use when making this determination?
Which part of Earth’s structure is composed of a solid mixture of nickel and iron?
Which property of Earth’s interior keeps the innermost part in a solid state?
Conductive currents occur in fluid media (gases and liquids). Why do hot fluids rise and cold fluids sink?
What is the main process that occurs at the Mid Atlantic Ridge?
oceanic crust formation
continental drift
seafloor spreading
subduction
What is the significance of the Mid Atlantic Ridge in plate tectonics?
It is a divergent boundary where new oceanic crust is formed.
It is a convergent boundary where two plates collide.
It is a subduction zone where one plate is forced beneath another plate.
It is a transform boundary where two plates slide past each other.
The image shows a diagram of the ocean floor near a mid-ocean ridge. Where would the oldest rock be found?
What formations happen at ocean to ocean subduction zones?
Deep oceanic trenches
Mountain Ranges
Coastal Volcanic Mountains
Both mountains and volcanoes
Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that
the oceanic crust is melting.
the denser ceanic crust is subducting under the less dense oceanic crust
volcanic islands are forming.
the tectonic plates are moving away from each other.
At subduction zones, what 2 landforms always form?
seafloor spreading and mountains
rift valleys and mid-ocean ridges
trenches and volcanoes/ underwater volcanoes
mountains and mid-ocean ridges
What theory describes the formation of our solar system?
The Big Bang theory
The theory of general relativity
The solar nebular theory
The theory of evolution
Uses the decay of radioactive elements to find the ___________________________ of a rock or fossil.
Relative age
Absolute age
New age
Real Age
Which layer is OLDER? Fault E or Intrusion D?
Fault E
Intrusion D
In which of the following eras did humans first appear in the fossil record?
Precambrian
Paleozoic
Mesozoic
Cenozoic
