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WorksheetsEarth's Changing Continents
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
What state of matter is the mantle in?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
2.
How fast do most tectonic plates move?
a)
0 centimeters per year
b)
Between 2-5 centimeters per year
c)
Between 2-5 inches per year
d)
Between 2-5 kilometers per year
3.
What are convergent boundaries responsible for?
a)
Mountain ranges and volcanoes
b)
Expanding (growing) oceans
c)
Plates sliding past each other
d)
Cellular respiration
4.
What happens when oceanic crust collides with continental crust?
a)
Mountain ranges are formed
b)
A rift and new ocean seaflooor is formed
c)
The continental crust sinks, this can create volcanoes
d)
The oceanic crust sinks, this can create volcanoes
5.
Rocks in India show scratches and scars that formed when glaciers ground over their surfaces. What does this mean?
a)
India is currently near the north pole now
b)
The glaciers traveled from the north pole to india a long time ago
c)
India was covered in ice a long time ago
d)
Glaciers formed on India during the ice age
6.
Mesosaurus fossil are found in South American and Africa. What is the explanation for this?
a)
Mesosaurus swam across the ocean to migrate
b)
Mesosaurus must have lived in both places across the ocean
c)
Mesosaurus fossils were brought to South America by humans and left there
d)
Mesosaurus must have lived at a time when the two continents were joined
7.
How does continental drift explain changes in climate?
a)
Continents can eventually move from cold to warm places on Earth, or vice versa
b)
Continental drift changed how warm the atmosphere was
c)
Continental drift changed how much carbon dioxide was in the air
d)
The animals on the moving continents were able to change the climate around them
8.
When Pangaea split apart, the organisms living on each continent were separated. This helps explain:
a)
Evolution - and why different organisms live on different continents
b)
Climate change - and why many organisms are dying out today
c)
Earthquakes - and why we build strong buildings
d)
Photosynthesis - and why they help absorb the carbon dioxide in the air
9.
What is the Panama Land Bridge?
a)
A narrow strip of land between Russia and Alaska (the U.S.)
b)
A man-made bridge constructed between Russia and Alaska (the U.S.)
c)
A narrow strip of land between North and South America
d)
A man-made bridge constructed between North and South America
10.
What was an effect of the Panama Land Bridge?
a)
Animals could now walk across the bridge, and so they competed with one another
b)
Creatures in the sea were separated and some populations evolved into different species
c)
The Gulf Stream - a strong ocean current - was created
d)
All of these choices are correct
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