Plate Tectonics LBMS

What type of volcano is composed of alternating layers of ash, cinders and lava flows?

It takes 100,000 years for a plate to move 2 Km. What is the rate in centimeters per year?

In 1910, this scientist theorized that the continents had moved.

Earth's plates slip past each other at ______ boundaries.

The outermost layer of the Earth.

Which of the following is not produced by a convergent plate boundary between two continental plates?

The Earth is composed of layers. Which layer is solid and composed of mostly iron and nickel?

a quickly moving wall of meltwater, mud and debri from a volcanic eruption.

What type of volcano is found in Hawaii?

Fast moving gasses, ash and pyroclastic material ejected from a volcano during eruption.

In a process taking tens of millions of years, part of the ocean floor sinks back into the __-.

Changes in the Earth's magnetic field creates magnetic ____ on the ocean floor.

Which layer of the Earth creates convection currents causing the crust to move?

The process of  _____ allows ocean floor to sink back into the mantle.

The deepest part of the ocean is along the ______ trench in the _____ ocean.

Near which letter would you find magnetic stripes?

A compass needle in the northern hemisphere will point to....

_________ currents in the Earth's mantle cause plates to move along _____ .

Fault lines at convergent boundaries are under what type of stress?

When magma reaches the Earth's surface it is called.......

Select the densest type of Earth's Crust.

The block of rock found above a fault line is called.....

In the mid-1900's scientists mapped the ocean floor using......

Which of the following is not evidence of sea-floor spreading?

A collapsed volcano creates a....... like the one at Yellowstone National Park

Which volcano in the state of Washington erupted in 1980 and destroyed nearly 2/3 of the mountain.

What is a solidified magma chamber?

The type of stress found at a divergent boundary.

The formation of the Grand Canyon by the Colorado River is an example of.....?

A large landmass is called .....

Which is a source of indirect evidence for the structure of the Earth?

Why is the hot inner core solid and not a liquid?

A wall of water created by an Earthquake under the ocean.

What type of lava creates dangerous pressure in the neck of a volcano?

volcanoes form this type of rock.

Deep scratches caused by _____ have been found in rocks of South Africa.

The ____________ scale measures the amount of damage done by an Earthquake

Which type of wave is used to determine that the outer core of the Earth is liquid?

Which is a part of the Earth's biosphere?

Which is a part of Earth's hydrosphere?

What type of plate boundary would exist in this diagram?

The longest mountain ranges in the world are found in ......

Which volcano destroyed the city of Pompeii in 79 AD?

Earth's plates move apart at ______ boundaries.

Where are the majority of volcanoes and Earthquakes found?

A chain of mountains that runs along the middle of the ocean floor.

When the hanging wall drops downward along two ______ faults, a fault block _________forms.

Which of the following is not evidence for "continental drift" theory?

This process adds more crust to the ocean floor.

In general, what happens to temperature and pressure with increased depth within the Earth?

What type of plate boundary exists in the Mid-Atlantic Ridge?

Most geologists originally ______ Wegeners idea of continental drift.

which type of forces shape the land's surface by building up mountains and other land masses?

When magma squeezes between rock layers, it forms a structure called a ......

Which of the following is NOT a type of wave produced by an Earthquake?

How much of the Earth's crust is composed of silicon and oxygen?

The Earth is composed of layers. What layer creates the magnetic field of the Earth?

The theory that the continents are moving is called.....

What state has the largest number of recorded Earthquakes?

Which of the following is an instrument used to detect Earthquake waves?

Which letter would represent a deep ocean trench?

What has happened to the Earth's magnetic field over millions of years?

Earth's plates move together at _____ boundaries.

A large raised area formed by millions of years of lava flows.

Heat from the ______ creates convection currents in the ______.

What type of fault is at the San Andreas Fault in California?

What is the opening of a volcano called?

The theory of _____ ______  states that the Earth's plates are in slow constant motion.

Continental crust is composed mostly of ______.

What is the minimum number of seismograph stations needed to find the epicenter of an Earthquake?