Science - Chapter 25 (Gimkit)

The mid-ocean ridge volcanoes are formed at a:

Divergent Boundary

Hawaii is formed from a:

Hot spot

The Himalayas are:

Not volcanically active

Mt Fuji (volcano in Japan) is a:

Convergent Volcano

The inner core is…

Solid

Which seismic wave cannot travel through liquid?

S wave

Which layer of the Earth is liquid?

Outer core

Volcanoes that form along a mid-ocean ridge occur at a(n) diverging plate boundary.

True

Hot spots are _____ areas in Earth's mantly.

Stationary

Converging

Mountains that are formed by volcanoes along a coastline.

Island Arc

A string of islands that can form from the collision of two oceanic plates.

Ring of Fire

A major volcanic belt known that circles the Pacific Ocean

Before lava reaches the surface, the molten material is called

Magma

In which location would you most likely find volcanoes?

Along mid-ocean ridges and where a plate is subducted

The denser and thinner of the two plate types.

Oceanic crust

What boundary is this?

Transform Boundary

What Is NOT An Evidence Of Sea Floor Spreading

Volcano studies

Convection

The transfer of heat by movement of currents within a fluid.

Density

Amount of mass within a given volume

Plate boundary

The region where two tectonic plates are in contact

Plate Tectonics

The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.

What boundary is this?

Divergent Boundary

When two continental plates pull apart a _________________ forms.

Rift Valley

What Occurs At A Divergent Boundary

Mid Ocean Ridges

Subduction Zone

A boundary where two plates converge, and because of differences in density, one dives beneath the other

Magnetic reversal

A change in Earth's magnetic field such that the positions of magnetic north and magnetic south are interchanged

Continental drift

An idea proposed by Alfred Wegener that the continents move; explained why the same fossils and rock formations were found on now widely-separated continents

Who Created The Theory Sea Floor Spreading

Harry Hess

What boundary is this?

Convergant boundary

Mid-ocean ridge

Underwater mountain chain formed as tectonic plates spread apart; wraps around the globe like the seam of a baseball

A mid-ocean ridge might be found at this type of plate boundary

Divergent

Fault

A break in the Earth's crust where masses of rock slip past each other.

The observation that the continents fit together like puzzle pieces, and may once have been connected, led Alfred Wegener to propose a theory called _____________

Continental Drift

What is the tallest mountain in the world?

Mount Everest

D = M / V

Formula for density

The less dense and thicker of the two plate types.

Continental Crust

Subduction

Process where one tectonic plate moves under another tectonic plate and sinks into the mantle as they converge

Supercontinent

a large landmass formed by the convergence of multiple continents

Pangaea

A famous supercontinent that existed about 225 million years ago and has since broken up

What Occurs At A Transform Boundary

Earthquakes

A plate boundary where two plates move away from each other. (Divide)

Divergent

Fault

A crack in the Earth's crust along which rocks have shifted

The folding of rock upward due to the stress between converging plates

Uplift

What occurs at a convergent boundary

Deep trenches

Seafloor spreading

Process that occurs at mid-ocean ridges where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge

Trench

A deep depression on the sea floor caused by the subduction of one plate under another