Earth's Interior and Plate Tectonics Test Review | Baamboozle - Baamboozle

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What causes a plate to be subducted?

the density...more dense plate subducts

Why didn't scientists believe Alfred Wegener's theory

He couldn't tell what made the continents move

What is molten rock under ground called? Molten rock above ground?

magma; lava

Explain how tsunamis are related to plate movement.

plate movement causes underwater earthquakes which cause tsunamis

What causes the plates to move in Continental Drift and Sea-Floor Spreading?

convection currents in the mantle

What kind of boundary occurs at a Mid-ocean ridge?

divergent

Why do earthquakes occur near the San Andreas Fault?

plates get stuck and suddenly move

What kind of boundary forms volcanoes?

convergent

What happens to older oceanic rock as new rock is formed during sea floor spreading?

gets pulled/pushed away from the mid ocean ridge

What type of seismic wave will reach a seismograph first?

P waves

What best explains identical rock types, identical fossils, and similar mountain features on different continents?

they were once joined together

What kind of boundary recycles crust back into the mantle?

convergent

Rift Valleys occur at what kind of plate boundary?

divergent

What caused the high mountains of the Himalayas?

colliding tectonic plates

What events happen most frequently along tectonic plate boundaries?

earthquakes and volcanoes

What events happen at transform boundaries?

earthquakes

Name the three types of plate boundaries

convergent, divergent, transform

What type of wave cannot travel through the liquid outer core?

S waves

Why is the inner core solid?

pressure

What kind of boundary forms trenches?

convergent

What kind of boundary creates new crust?

divergent

Why might a seismograph pick up seismic waves from an earthquake?

waves got bent away or stopped by core