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7th Science - Ch 1

Inside Earth - Plate Tectonics retake

QuestionAnswer
A collision between two pieces of continental crust at a converging boundary produces a... mountain range
According to Wegener's hypothesis of continental drift, the continents were once joined together in a single land mass.
Most geologists rejected Alfred Wegener's idea of continental drift because... Wegener could not identify a force that could move the continents.
Geologists obtain indirect evidence about Earth's interior by.. recording and studying seismic waves.
The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of... plate tectonics
Which type of evidence was NOT used by Alfred Wegener to support this continental drift hypothesis - evidence from landforms; evidence from fossils, evidence from human remains? evidence from human remains
A place where two plates slip past each other, moving in opposite directions, is known as a... transform boundary.
What is Pangaea? the name of the supercontintent that existed millions of years ago.
Most geologists think that the movement of Earth's plates is caused by... convection currents in the mantle.
Using data from seismic waves, geologists have learned that Earth's interior is made up of several... layers
Holes drilled several kilometers into Earth's crust provide direct evidence about Earth's interior in the form of... rock samples.
Mid-ocean ridges are... found in all of Earth's oceans.
Earth's inner core is... a dense ball of solid metal.
Old oceanic crust is more dense than new oceanic crust because it is... cool.
What technology did scientists use in the mid-1900's to map the mid-ocean ridge? sonar
When you touch a hot pot or pan, energy moves from the pot to your hand. This is called... heat transfer
Earth's mantle is... a layer of hot rock.
Any trace of an ancient organism that has been preserved in rock is called a... fossil.
Earth's magnetic field results form movements in the... mantle.
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as... subduction.
The transfer of energy through empty space is called... radiation.
In sea-floor spreading molten material rises from the mantle and erupts... along mid-ocean ridges.
When the heat source is removed from a fluid, convection currents in the fluid will... eventually stop
What is the correct order (starting from the surface) of Earth's layer? crust, mantle, outer core, inner core
How did scientist discover that rocks farther away from the mid-ocean ridge were older than those near it? by determining the age of rock samples obtained by drilling on the sea floor
The place where two plates come together is known as a... convergent boundary.
What did scientists in a submersible see when they observed the mid-ocean ridge? rocks formed by the rapid hardening of molten material
Scientists think that convection currents flow in Earth's... mantle.
A rift valley forms at a... divergent plate boundary
Heat transfer within a fluid takes place by... convection currents.
Created by: 7thgrade
 

 



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