Plate Tectonics or Continental Drift?
True or False
The theory of continental drift and the theory of plate tectonics have similarities
TRUE!
Both explain how the continents fit like puzzle pieces, how mountain ranges form, and why fossils are found oceans apart
Fault Zone
What are the 3 plate boundaries?
1. Divergent
2. Convergent
3. Transform
Tectonic plates can be made of continental crust and oceanic crust. Besides their location, how else are these two kinds of crust different?
A. Continental crust is thinner than oceanic crust
B. Continental crust is thicker than oceanic crust
C. Tectonic plates with continental crust are smaller than plates with only oceanic crust
B. Continental crust is thicker than oceanic crust
The advancement of what allowed scientists to learn more about how the plates move?
Technology
Volcanic Mountains
mountains formed from molten rock that erupts from beneath Earth's surface
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On what layer of the earth do tectonic plates move?
Asthenosphere
Which of these best describes a scientific theory?
A. An explanation based on the opinion of a scientist
B. A well-supported and widely accepted explanation of nature
C. A description of a specific relationship under given conditions
D. A statement describing what always happens under certain condition
B. A well-supported and widely accepted explanation of nature
Slab Pull
When a sinking oceanic plate pulls the rest of the tectonic plate with it
Come up and draw arrows representing divergent plate boundaries
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Which scientific investigation does not include dependent and independent variables?
A. Studying the effect of temperature on bacterial reproduction rates
B. Observing and counting birds
C. Investigating the effect of mass on the speed at which an object falls
B. Observing and counting birds
Name a piece of scientific evidence that supports the theory of plate tectonics
Rocks and Landforms on Continents
Rocks and Landforms Underwater
Volcanoes
Fossils
Earthquakes
When two plates move away from one another in the ocean
Come up and draw arrows representing a transform plate boundary
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What is is called when mountains that are formed when large blocks of rock and are squeezed together as two tectonic plates collided
A. Folded
B. Eroded
C. Volcanic
A. Folded
What is a difference between the theory of plate tectonics and the theory of continental drift
Continental Drift does not explain seafloor spreading, subduction, volcanoes, and earthquakes (not enough technology)
Hot Spot
Areas of volcanoes that do not occur near plate boundaries (Ex: ring of fire)
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What happens during the time between earthquakes?
A. Energy built up as stress on the rocks from the moving plates increased
B. The fault closed, so there was very little energy to cause an earthquake
C.. The energy stored in the rocks decreased as tectonic plates moved apart
A. Energy built up as stress on the rocks from the moving plates increased