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Earth's Layers and Plate Tectonics Flashcards | StudBud
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Earth's Layers and Plate Tectonics
Earth's Layers and Plate Tectonics
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A #6thgrade #science level Quiz on #earthslayers and #platetectonics - Based on FL standards
Flashcards
18 cards
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Questions
18
Answers
1
What forms when oceanic crust diverges?
New crust
Creates mid-ocean ridges (seafloor spreading) & new crust
Islands are created
Mountains form
2
What forms at transform boundaries?
Earthquakes
Volcanoes
Mountains
Rift Valleys
3
How do Earth's tectonic (lithospheric) plates move?
Convection in the core causes the plates to move.
The core heats the mantle which causes convection currents.
The plates move as they float along the oceans.
The plates do not move.
4
Why is the Ring of Fire, an area in the Pacific, where many earthquakes and volcanoes happen?
Plates diverging
Transform boundaries surround this region
Plates converging
There are numerous tectonic plate boundaries along the edges
5
What forms when continental crust diverges?
Volcanoes
Rift Valleys and new crust
Folded Mountains
Islands
6
Why did other scientists not support Wegener's theory of Continental Drift?
He could not explain how the plates moved.
He had no evidence to support his claim.
He could explain how the plates moved.
His evidence supported the idea that the plates hadn't moved.
7
Which of the following is
NOT
TRUE
about the Mantle?
Convection currents that move the crust happen here.
It is a solid.
The upper mantle is part of the Lithosphere.
It is an amorphous solid (not truly a liquid or a solid).
8
What forms when an ocean plate and continental plate converge?
Subduction creates volcanic mountain ranges.
Seafloor Spreading
Rift Valleys
Subduction creates volcanic island arcs.
9
What forms when 2 Oceanic Plates of similar densities converge?
Mountain ranges form in the ocean.
Rift Valleys
Subduction creates trenches and volcanic island arcs.
Sea Floor Spreading
10
Which of the following
IS TRUE
about the Outer Core?
It is liquid metal (iron and nickel).
It is solid metal (iron and nickel).
Convection currents that move the crust happen here.
It is part of the Asthenosphere.
11
Which of the following is
NOT TRUE
about the Crust?
It is made of metal.
It is a solid that is broken into pieces called plates.
It is the least dense layer of Earth.
It is the coolest layer of Earth.
12
What forms when continental crust converges with continental crust?
Folded Mountains
Islands
Volcanoes
Rift Valleys
13
What evidence did Wegener find to support his theory of Continental Drift?
Plant fossil only found in Asia.
Rare phytoplankton found in Australia.
Matching rock layers and fossils on multiple continents.
Matching ice sheets in Africa, Antarctica, SA, and Australia.
14
What forms when 2 Oceanic Plates of different densities converge?
Mountain ranges form in the ocean.
Rift Valleys
Subduction creates trenches and volcanic island arcs.
Sea Floor Spreading
15
What is the correct order from outermost to innermost?
Crust, Mantle, Inner Core, Outer Core
Inner Core, Outer Core, Mantle, Crust
Inner Core, Mantle, Outer Core, Crust
Crust, Mantle, Outer Core, Inner Core
16
Which of the following is
NOT TRUE
about the Inner Core?
It is the most dense layer.
It is the hottest layer of Earth.
It is liquid metal.
It is solid metal.
17
New crust is created in the ocean at mid-ocean ridges. What does this do to older rocks?
Pushes older rocks to the side causing seafloor spreading.
Forces old crust to bunch together causing mountains.
Melts it and adds it to the new crust formation.
It makes the layer of crust thicker.
18
What is the Lithosphere?
The Lithosphere is the crust.
The Lithosphere is the sphere of earth containing soil.
The Lithosphere is the mantle.
The Lithosphere is the crust and upper layer of the mantle.
