Earth Science Quiz #2

Changes in the heat and density of rock create ____________________ in the mantle of the Earth.

____________ are caused by Earthquakes & provide evidence to the structure of Earth’s interior.

Magnetic stripes on each side of a mid-ocean ridge show the reversals of Earth’s magnetic field

In general, when two plates collide, the one that is more dense will subduct under the other.

Name this plate boundary.

Older rocks are found close to mid-ocean ridges, while newer rocks are found near trenches.

The ____________________ is a dense, solid ball of iron and nickel.

Mountains are formed when two plates carrying oceanic crust converge.

At which point is there a trench?

Name this plate boundary.

There are signs of climate change, such as glacier markings on rocks in now warmer climates.

__________________ are formed at convergent boundaries between two continental plates.

_________________ is a theory that pieces of Earth’s lithosphere are in slow, constant motion

The ________________ is a layer of semi-solid material found below the lithosphere.

What type of plate boundary is found at point C?

The __________________ is the outer “skin” of the Earth.

The __________________ is a layer of liquid iron and nickel.

What type of plate boundary is found at point A?

Fossil evidence shows the same land species on continents that are now separated by oceans.

Scientists rejected Wegener’s theory because he could not…

In a convection current, the cooler, denser material will…

______________ is an idea that continents were once joined but have slowly separated over time.

Molten material viewed by submarines shows the creation of new crust at mid-ocean ridges.

Rock formations on different continents match each other in rock age and type.

Which part of Earth’s interior is thought to drive plate tectonics?

At which point is there a mid-ocean ridge?

The _________________ is a rigid layer that includes the upper part of the mantle & the crust.

Which point demonstrates the overall process of sea-floor spreading?

Subduction is…

Drilling samples of rock show that age increases as distance from a mid-ocean ridge increases.

Name this plate boundary.

When oceanic crusts collides with continental crust, the oceanic crust is subducted underneath.

Which part of Earth’s interior is thought to be responsible for the planet’s magnetic field?

At which point is subduction occurring?

Who first proposed the theory of continental drift?

_________________ decides which plate will be subducted at a convergent boundary.

All continents were once joined together in a supercontinent known as _________________.