Plate Tectonics LBMS

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

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

Which letter would represent a deep ocean trench?

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

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

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

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

volcanoes form this type of rock.

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

Most geologists originally ______ Wegeners idea of continental drift.

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

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

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

Continental crust is composed mostly of ______.

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

Earth's plates move apart at ______ boundaries.

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

Heat from the ______ creates convection currents in the ______.

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

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

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

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

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

This process adds more crust to the ocean floor.

Which is a part of the Earth's biosphere?

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

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

A large landmass is called .....

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

What type of plate boundary would exist in this diagram?

What state has the largest number of recorded Earthquakes?

Which is a part of Earth's hydrosphere?

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

What is the opening of a volcano called?

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

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

Where are the majority of volcanoes and Earthquakes found?

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

Which volcano destroyed the city of Pompeii in 79 AD?

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

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

What is a solidified magma chamber?

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

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

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

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

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

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

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

The outermost layer of the Earth.

Earth's plates move together at _____ boundaries.

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

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

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

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

What type of volcano is found in Hawaii?

The type of stress found at a divergent boundary.

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

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

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

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

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

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

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

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

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

Near which letter would you find magnetic stripes?

Select the densest type of Earth's Crust.

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

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