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WorksheetsEarth Structure and Continental Drift
Total questions: 23
Worksheet time: 12mins
Which layer of the Earth is made of iron and some nickel?
crust
mantle
core
In what layer does convection occur?
Crust
Mantle
Inner core
Shell
Why did no one believe Wegener's ideas about continental drift? (Choose 2)
He could not successfully explain HOW the continents moved
He didn't have evidence that supported his ideas that the continents had once been connected
They were biased against his ideas because he was German and a meteorologist
He didn't use the right technology to gather data
What type of evidence was used by Alfred Wegener to support his continental drift hypothesis? (Select 3)
evidence from landforms / geology
evidence from fossils
evidence from human remains
evidence from climate
According to Wegener's hypothesis of continental drift,
Earth's surface is made up of seven major landmasses
the continents DO NOT move
Earth is slowly cooling and shrinking
the continents were once joined together in a single landmass, and these plates will continue to move.
What items were found in Antarctica that lead us to believe the climate was once much warmer? (Select 3)
Plant fossils of tropical ferns
Animal fossils of reptiles that live in warm conditions
Coal deposits that formed in tropical swamps
Mammoth fossils preserved in ice
The Appalachian Mountains in the U.S. match up with a similar mountain ranges in northern Europe. How does this support Wegener's theory of Continental Drift?
The mountains were formed after tectonic plates had moved away from each other
The similarities provide evidence North America & Europe were connected when the mountains formed.
Similar rock samples were found on the ocean floor and at the two mountain ranges indicating that they both formed around the same time.
This evidence does not support the theory of continental drift.
Alfred Wegener used all of the following for evidence of his idea EXCEPT...
The shapes of the continents fitting together like a puzzle
Similar fossils on different continents
Comparable modern weather patterns on different continents
Similar rock formations on different continents
According to the continental drift hypothesis, the presence of similar fossils in South America and Africa supports which scientific idea?
Animals easily and frequently travel from Africa to South America.
Species of animals probably traveled between continents on natural rafts (such as trees destroyed in tsunamis).
Land bridges once existed that connected the continents.
South America and Africa were once connected together.
Which of the following best describes Wegener's continental drift ideas?
Hypothesis: There was data to support the idea but more information was needed to build it into a scientific theory.
Theory: It was an early idea of Wegener's but it didn't yet have any evidence to support it.
Theory: It was a well supported idea that explained many things. No additional information was needed (it just needed time for people to accept it).
Hypothesis: It was an educated guess that Wegener made based on maps, but he hadn't yet collected experimental data.
