Exam 2: Journey to the Center of the Earth

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The distinction between the crust and the mantle is primarily on the basis of a difference in ; the distinction between the lithosphere and the asthenosphere is primarily on the basis of a difference in .

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Question 1

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What have seismic waves taught us about the interior of our planet?

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Question 2

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Seismic waves travel at different velocities though different materials.By detecting depths at which seismic-wave velocities suddenly change,geologists can pinpoint the boundaries between layers.For example,studies of seismic waves revealed the existence of the liquid outer core and the solid inner core.

The boundary between the crust and the mantle is marked by an abrupt change in seismic velocity called the

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Question 3

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What happens to the pressure and temperature as you go deeper inside the Earth? What is the geothermal gradient?

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Question 4

Which of the following is NOT required for a substance to be considered a mineral?

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Question 5

Contrast oceanic crust and continental crust based on their composition,density,and thickness.

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Question 6

The lithosphere is composed of the

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Question 7

The densest layer of the Earth is the

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Question 8

An aurora (shown below)is produced when

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Question 9

From left to right,correctly label each section of this slice of the Earth.Note that 1 starts at the surface of the Earth and 6 ends at the center of the Earth.

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Question 10

What is a melt? What type of rock forms from a melt? Distinguish between a melt on the surface of the Earth and one below the surface of the Earth.

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Question 11

The figure below shows the hypsometric curve for the Earth.Which of the following can be concluded from the plot of this data?

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Question 12

The most common minerals within the Earth are

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Question 13

Most meteorites are asteroidal or planetary fragments.As such,geologists consider the average composition of meteorites to be representative of the average composition of the

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Question 14

Which planets lie within the habitable zone of our Solar System?

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Question 15

Neil Armstrong and Buzz Aldrin were the first people to

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Question 16

Look at the following image of our Solar System.Where is the concentration of atoms greatest?

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Question 17

The atmosphere is divided into several distinct layers.From the ground up they are,in order,

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Question 18

The Earth's surface is protected from solar wind and cosmic radiation by

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Question 19

Why is it less strenuous to go for a jog in San Diego (at sea level)than in Denver (at an altitude of 1 mile)? Note: Please base your answer on elevation alone; assume all other factors are equal.

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Question 20

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Exam 2: Journey to the Center of the Earth

The distinction between the crust and the mantle is primarily on the basis of a difference in ________; the distinction between the lithosphere and the asthenosphere is primarily on the basis of a difference in ________.

What have seismic waves taught us about the interior of our planet?

The boundary between the crust and the mantle is marked by an abrupt change in seismic velocity called the

What happens to the pressure and temperature as you go deeper inside the Earth? What is the geothermal gradient?

Which of the following is NOT required for a substance to be considered a mineral?

Contrast oceanic crust and continental crust based on their composition,density,and thickness.

The lithosphere is composed of the

The densest layer of the Earth is the

An aurora (shown below)is produced when

From left to right,correctly label each section of this slice of the Earth.Note that 1 starts at the surface of the Earth and 6 ends at the center of the Earth.

What is a melt? What type of rock forms from a melt? Distinguish between a melt on the surface of the Earth and one below the surface of the Earth.

The figure below shows the hypsometric curve for the Earth.Which of the following can be concluded from the plot of this data?

The most common minerals within the Earth are

Most meteorites are asteroidal or planetary fragments.As such,geologists consider the average composition of meteorites to be representative of the average composition of the

Which planets lie within the habitable zone of our Solar System?

Neil Armstrong and Buzz Aldrin were the first people to

Look at the following image of our Solar System.Where is the concentration of atoms greatest?

The atmosphere is divided into several distinct layers.From the ground up they are,in order,

The Earth's surface is protected from solar wind and cosmic radiation by

Why is it less strenuous to go for a jog in San Diego (at sea level)than in Denver (at an altitude of 1 mile)? Note: Please base your answer on elevation alone; assume all other factors are equal.

Cosmology and the Birth of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Crags,cracks,and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of the Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

An Envelope of Gas: the Earths Atmosphere and Climate

Dry Regions: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

Introducing Rocks

a Surface Veneer: Sediments and Soils

the Rock Cycle in the Earth System

the Earths Interior, Revisited: Seismic Layering, Gravity, and the Magnetic Field

Memories of Past Life: Fossils and Evolution

Ever-Changing Landscapes and the Hydrologic Cycle

Prelude: and Just What Is Geology

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The distinction between the crust and the mantle is primarily on the basis of a difference in ; the distinction between the lithosphere and the asthenosphere is primarily on the basis of a difference in .