Plate Tectonics - Boundary Lesson
Presentation
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Science
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8th Grade
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Practice Problem
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Medium
+3
Standards-aligned
Sheila Stefansic
Used 14+ times
FREE Resource
23 Slides • 12 Questions
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Tectonic Plates
Start Part 2
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Drag and Drop
Which type of crust is thicker?
Which type of crust is mostly basaltic rock?
Which type of crust is mostly granite?
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Dropdown
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Plate Motion & Convection Currents
In the mantle, convection currents churn the molten rock material, moving the tectonic plates.
• A convection current is the continuous flow that occurs in a fluid because of differences in density
• Cool material is denser and sinks
• Warm material is less dense and rises
Mantle Convection
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Multiple Select
Check all that are true about a convergent plate boundary.
2 plates collide
It is destructive
can produce trenches and volcanoes
can produce mountain ranges
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Multiple Choice
When an oceanic and continental plate collide, magma may reach the surface and form a
oceanic volcanic arc
continental volcanic arch
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Drag and Drop
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Multiple Choice
Which of the following best describes what it means to be subducted.
raised up
forced under
replaced
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Multiple Select
Check all that are true when an oceanic plate collides with another oceanic plate
One of them are subducted
Both of them are subducted
a volcanic island arc may form
a continental volcanic arc may form
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Multiple Select
Check all that are true about a boundary where a continental plate meets another continental plate
the smallest one is subducted
neither one is subducted
new complex mountain ranges form
a continental volcanic arch is likely
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Multiple Select
Check all that are true about a Transform boundary
They are destructive
They are constructive
2 plates slide past each other
This boundary is the type most likely to cause earthquakes
The San Andreas fault in California is this type of boundary
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Multiple Choice
What do we call the long belt of volcanoes that circle the pacific ocean?
Pacific Islands
The Volcano belt
Ring of Fire
Firey hexagon
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Drag and Drop
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Match
Continental-Oceanic convergent boundary
Oceanic-Oceanic Convergent Boundary
Continental-Continental Convergent
Oceanic-Oceanic Divergent Boundary
Transform Boundary
Oceanic plate subducted may cause a continental volcanic arc
One subducts under the other volcanic island arcs are common
Creation of complex mountain ranges
Also known as sea floor spreading - creates new ocean floor
also known as Strike-Slip
Plates slide past each other. Earthquakes common
Oceanic plate subducted may cause a continental volcanic arc
One subducts under the other volcanic island arcs are common
Creation of complex mountain ranges
Also known as sea floor spreading - creates new ocean floor
also known as Strike-Slip
Plates slide past each other. Earthquakes common
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