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WorksheetsScience Quiz For Continental Drift, Seafloor spreading, etc.
Total questions: 27
Worksheet time: 14mins
Name
Class
Date
1.
Millions of years ago, all of the continents formed one supercontinent called ___.
a)
Panthalassa
b)
Pangaea
c)
Continental Drift
d)
Wegner
2.
___ is Wegener's idea that the continents slowly moved over Earth's surface.
a)
Pangaea
b)
Seafloor Spreading
c)
Subduction
d)
Continental Drift
3.
True or False: Most scientists of Wegener's time accepted his theory of continental drift.
a)
True
b)
False
4.
A ___ is any trace of an ancient organism that has been preserved in rock.
a)
Bone
b)
Crystal
c)
Fossil
d)
Mineral
5.
T/F: Wegener used evidence from land features, fossils, and climate to support his theory.
a)
True
b)
False
6.
Wegener noticed that the coasts and mountain ranges on ___ and ___ line up
a)
Africa and Australia
b)
Africa and North America
c)
Africa and South America
d)
North America and South America
7.
Which fossil is the most common in the image shown?
a)
Cynognathus reptile"
b)
Glossopteris plant
c)
Lystrosaurus reptile
d)
Mesosaurus reptile
8.
As a continent moves toward the poles, its climate gets ___.
a)
Colder
b)
Warmer
9.
As a continent moves toward the ___, its climate gets warmer.
a)
Equator
b)
Poles
10.
As a continent moves ___ the poles, its climate gets warmer.
a)
Away from
b)
Towards
11.
T/F: A continent carries the fossils and rocks that formed at all its previous locations.
a)
True
b)
False
12.
The idea of continents moving slowly over Earth's surface was developed by scientist ___.
a)
Albert Einstein
b)
Alfred Wegener
c)
Galileo Galilei
d)
Marie Tharp
13.
T/F: Sonar is used by scientists to map the ocean floor.
a)
True
b)
False
14.
___ are long chains of mountains that rise up from the ocean floor.
a)
Deep-Ocean Trenches
b)
Mid-Ocean Ridges
c)
Seafloor Spreading
d)
Subduction
15.
Deep valleys along the ocean floor beneath which oceanic crust sinks toward the mantle.
a)
Deep-Ocean Trenches
b)
Mid-Ocean Ridges
c)
Seafloor Spreading
d)
Subduction
16.
Which features form the longest mountain ranges on Earth?
a)
Deep-Ocean Trenches
b)
Mid-Ocean Ridges
c)
Seafloor Spreading
d)
Subduction
17.
Which scientist drew details of the ocean floor based on sonar data?
a)
Albert Einstein
b)
Alfred Wegener
c)
Galileo Galilei
d)
Marie Tharp
18.
The process that adds new oceanic crust to the sea floor is ___.
a)
Continental Drift
b)
Seafloor Spreading
c)
Subduction
d)
Suction
19.
The process that removes older oceanic crust is ___.
a)
Continental Drift
b)
Seafloor Spreading
c)
Subduction
d)
Suction
20.
Where does subduction occur?
a)
Along the middle of some ocean floors
b)
At deep-ocean trenches
c)
Down the middle of mountain ranges
d)
On top of continents
21.
T/F: A deep-ocean trench is an underwater mountain.
a)
True
b)
False
22.
What changes the size and shape of the Earth's oceans?
a)
Seafloor spreading only
b)
Suduction only
c)
Both seafloor spreading and subduction
d)
None of the above
23.
Magma (molten material) erupts from a ___.
a)
Deep-Ocean Trench
b)
Mid-Ocean Ridge
c)
Seafloor Spreading
d)
Subduction
24.
At a ___, the oceanic crust bends downward.
a)
Deep-Ocean Trench
b)
Mid-Ocean Ridge
c)
Seafloor Spreading
d)
Subduction
25.
During subduction, ocean crust sinks under a deep-ocean trench and melts into ___.
a)
Magma
b)
Lava
c)
Old Crust
d)
New Crust
26.
T/F: The farther from a mid-ocean ridge a rock sample is taken, the younger the rock is.
a)
True
b)
False
27.
The youngest rocks are always found at the center of the ___.
a)
Ridges
b)
Trenches
c)
Continents
d)
Fossils
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