Dynamic Planet Module Review

Bending of a wave due to changes in its velocity

1 2 3 4

25% 25%25%25%

1. Convection2. Reflection3. Subduction4. Refraction

Structure a scientist builds in his or her mind

1 2 3 4

25% 25%25%25%

1. Physical model2. Conceptual model3. Mathematical

model4. Numerical Model

Fastest kind of seismic wave

1 2 3 4

25% 25%25%25%1. P wave2. S wave3. R wave4. Surface wave

Model a scientist constructs in his or her mind

1 2 3 4

25% 25%25%25%1. Physical model2. Conceptual model3. Mathematical

model4. Numerical model

Process that consumes ocean crust where two plates meet

1 2 3 4

25% 25%25%25%1. Subduction2. Trench3. Convection4. Refraction

Seismic wave that cannot travel through liquids

1 2 3 4

25% 25%25%25%1. P wave2. S wave3. R wave4. Tsunami

The oceanic crust is ______ than the continental crust

1 2 3 4

25% 25%25%25%1. Thicker2. Thinner3. Less dense4. Smaller in area

The Earth’s crust and mantle:

1 2 3 4

25% 25%25%25%1. Have the same chemical composition

2. Have the same thickness3. Have different densities4. Have no boundary

between them

The part of the Earth that is made of high-temperature liquid iron

1 2 3 4

25% 25%25%25%1. Outer core2. Inner core3. Mantle4. lithosphere

Mantle ___ plays an important role in moving Earth’s plates

1 2 3 4

25% 25%25%25%1. Conduction2. Convection3. Refraction4. Liquefaction

New crust is formed and spreads apart at

1 2 3 4

25% 25%25%25%1. Transform fault

boundaries2. Convergent plate

boundaries3. Subduction zones4. Divergent plate

boundaries

One plate slides past another horizontally at:

1 2 3 4

25% 25%25%25%1. Transform fault boundaries

2. Convergent plate boundaries

3. Subduction zones4. Divergent plate

boundaries

The __ of an earthquake is the point on the Earth’s surface above the

________

1 2 3 4

25% 25%25%25%

1. Epicenter/focus2. Focus/epicenter3. Refraction/epicen-

ter4. Refraction/focus

An earthquake on the sea floor can produce:

1 2 3 4

25% 25%25%25%1. Magma2. Subduction3. Tsunamis4. Tornadoes

What name did Alfred Wegener give to his theory of horizontal movement of the Earth’s

crust?

1 2 3 4

25% 25%25%25%1. Continental drift2. Isostasy3. Plate tectonics4. Sea-floor

spreading

What name did Wegener give to his proposed single supercontinent?

1 2 3 4

25% 25%25%25%1. Eurasia2. Gondwanaland3. Panthalassa4. Pangea

Which of the following kinds of evidence did Wegener use to support his theory?

1 2 3 4

25% 25%25%25%1. Distributions of fossil plants and animals in the ocean

2. Geographic fit of the continents

3. Pattern of earthquakes and volcanoes along the “Ring of Fire”

4. All of the above

Why did most scientists of the 1920’s reject Wegener’s theory?

1 2 3 4

25% 25%25%25%1. The concentration of continents in the Northern Hemisphere

2. Lack of a mechanism for continents to plow through oceanic crust

3. The Earth was thought to be too young for such movements

4. Wegener was not a geologist by training and so his ideas were ignored

The San Andreas Fault in southern California is an example of a boundary

between:

1 2 3 4

25% 25%25%25%1. Two plates that are colliding

2. Two plates that are moving apart

3. Two plates that are sliding past one another

4. Continental lithosphere and oceanic lithosphere

According to plate tectonics, new lithosphere is added to plates at a

boundary between:

1 2 3 4

25% 25%25%25%1. Two plates that are no

longer moving2. Two plates that are

moving apart3. Two plates that are

sliding past one another4. Continental lithosphere

and oceanic lithosphere

What is the term used for molten rock within the Earth?

1 2 3 4

25% 25%25%25%1. granite2. pumice3. lava4. magma

The Earth’s lithospheric plates move at speeds that average:

1 2 3 4

25% 25%25%25%1. 5 meters per year2. 5 centimeters per

year3. 50 meters per

year4. 5 kilometers per

year

Most earthquakes occur:

1 2 3 4

25% 25%25%25%1. In the middle of plates

2. At the poles3. Very deep within

the Earth4. Along plate

boundaries

Structure a scientist builds to represent something else

1 2 3 4

25% 25%25%25%1. Computer model2. Conceptual model3. Mathematical

model4. Physical model