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Continental Drift and Seafloor Spreading

Total questions: 21

Worksheet time: 14mins

Name
Class
Date
1.
How does fossil evidence support Wegener's hypothesis of continental drift?
a)
Similar fossils are found along continental margins that appear to join together.
b)
Fossils are found in areas where the present-day climate could not have supported the organisms that made the fossils.
c)
Similar fossils of giant, land-dwelling dinosaurs are found on continents separated by oceans.
d)
all of the above
2.
The German scientist who first proposed the Theory of Continental Drift 100 years ago?
a)
Harry Hess
b)
Penny Pangea
c)
Alfred Wegener
d)
Gary Gondwana
3.
The east coast of South America seems to fit into the wet coast of Africa, this evidence for Continental Drift is called...
a)
fit/shape of continents
b)
fossil evidence
c)
geologic evidence
d)
climate evidence
4.
India, Australia, South America, and Africa all have deep grooves or scratches in rocks which is climate evidence of ....
a)
erosion
b)
dinosaurs
c)
glaciers
d)
aliens
5.

What is the name of the large supercontinent that once existed?

a)

Gondwanaland

b)

Laurasia

c)

Eurasia

d)

Pangea

6.

Why did other scientists have a hard time believing Wegener's theory of continental drift?

a)

He could not explain how the continents moved

b)

He didn't have enough evidence

c)

His evidence was wrong

d)

He didn't use the right technology to gather data

7.

The Appalachian Mountains in the U.S. match up with a similar mountain range in Northern Europe. How does this support Wegener's theory of Continental Drift?

a)

The similarities provide evidence that North America and Europe were connected when the mountains formed.

b)

The similarities show that the continents must have been closer to the equator at some point in time.

c)

This does not provide any evidence to support his theory.

8.

Which of the following has been used as evidence to support CDT?

a)

constellations

b)

mountain ranges on different continents with similar rocks

c)

ocean currents

d)

meteorites

9.

What is the name of the process shown in this diagram?

a)

Continental Drift

b)

plate tectonics

c)

seafloor spreading

d)

Big Bang theory

10.
What is the force that moves the continents? 
a)
Conduction 
b)
Convection 
c)
Radiation 
d)
Conveyor belts 
11.

According to the continental drift hypothesis, the presence of similar fossils in South America and Africa supports which scientific idea?

a)

Animals easily and frequently travel from Africa to South America.

b)

Species of animals probably traveled between continents on natural rafts (such as trees destroyed in tsunamis).

c)

Land bridges once existed that connected the continents.

d)

South America and Africa were once connected together.

12.

Process by which new ocean crust forms.

a)

Seafloor spreading

b)

Continental drift

c)

Mid-ocean ridge

d)

Rift

13.
The zone where one plate slides under another is called the
a)
Convergent zone
b)
Subduction zone
c)
Transform zone
d)
Mantle zone
14.
The OLDEST seafloor is located? 
a)
Closest to the mid-ocean ridge
b)
Farthest from the mid-ocean ridge
15.

What is it called when the ocean floor sinks beneath a deep-ocean trench?

a)

Mid-Ocean Ridge

b)

Deep-Ocean Trench

c)

Sea-Floor Spreading

d)

Subduction

e)

Magnetic Striping

16.
The oceanic crust is pushed aside on both sides of the 
a)
Continent's edge
b)
Deep-ocean trench
c)
Mid-ocean ridge
17.
New crust is always formed at the...
a)
mid-ocean ridge
b)
deep-ocean trench
c)
asthenosphere
18.

What words describe M? choose all

a)

Tectonic plates

b)

Mid-ocean ridge

c)

Subduction

d)

Seafloor spreading

19.

What feature is at C?

a)

Subduction

b)

Seafloor spreading

c)

Deep ocean trench

d)

Alfred Wegener

20.

What is the process happening at R?

a)

Subduction

b)

Sea floor spreading

c)

Mid ocean ridge

d)

Sonar

21.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O

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