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WorksheetsRelative Age of Rocks
Total questions: 16
Worksheet time: 8mins
The age of rock compared to the ages of other rocks
extrusion
relative age
absolute age
index fossil
the age of rock given the number of years since the rock formed
index fossil
relative age
absolute age
unconformity
fossils of widely distributed organisms that lived during a geologically short period
absolute age
extrusion
unconformity
index fossil
the geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the rock above it and younger than the rock below it
erosion
absolute age
law of superposition
relative age
Rock layers can be disturbed by
Extrusians
Unconformity
Eroision
All of the above
A break in the Earth's crust along which rocks move
relative age
unconformity
fault
folding
Look at the picture. Which fossil is most likely older?
Look at the picture. Which fossil is most likely younger?
Who came up with the theory of Continental Drift?
Albert Einstein
Issac Newton
Alfred Wegener
Harry Hess
What is the theory of Continental Drift?
The continents have always stayed in their current location.
The continents had once been joined in a single landmass and have since drifted apart.
The same fossils of plants and animals can be found on the same continents.
New crust is being created at mid-ocean ridges and is pushing away old crust.
Which two continents did Wegener notice fit together like pieces of a puzzle?
Africa and North America
South America and Europe
Asia and South America
South America and Africa
What was the name of the super continent that existed 250 million years ago?
Pangaea
Eurasia
Wegenerland
Disneyland
Why did people not believe in Wegener's theory about continental drift?
There was a competing theory at the time that was more believable.
There was no data showing the continents ever moved.
The scientists did not know the force responsible for moving the continents.
The scientist presenting the data was unreliable.
How did fossil evidence support Wegener's hypothesis of continental drift?
Similar fossils are found along continental margins that appear to join together.
Fossils are found in areas where present-day climate could not have supported the organisms that made the fossils.
Similar fossils of land-dwelling dinosaurs are found on continents separated by oceans.
All of the above.
What evidence did Wegener us to support his theory of Continental Drift?
Land Features
Fossils
Climate
All of the above
30 years after Wegener passed away a new scientistic discovery proved that the continents did move. What was that scientific discovery?
the Law of Universal Gravitation
Newton's First law of Motion
Plate Tectonics
Inertia
