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WorksheetsUnit Review Earth's Dynamic Interior
Total questions: 20
Worksheet time: 24mins
Which layer of Earth is the most dense?
Crust
Mantle
Core
Which layer of Earth is the least dense?
Crust
Mantle
Core
What causes the convection currents in the mantle?
The less dense (hotter) material rises to the top, eventually the more dense (cooler) material sinks towards the core.
The more dense (hotter) material rises to the top, eventually the less dense (cooler) material sinks towards the core.
Why does the Earth’s surface move?
Where does the energy come from that powers the motion in the Earth’s Interior?
What are the 3 ways plates move?
Ridge push, slab pull, and convection currents
Convergent, Divergent, and Transform
Convection currents, magma flow, and crustal displacement
Crustal displacement, ridge push, and slab pull
When plates move, the convection currents go in the ______ directions as the plate motion?
Opposite
Same
Perpendicular
There are no currents
When plates get recycled, the rock...
Gets recycled and comes up as new rock at the ocean ridge.
Gets recycled and comes up as old rock at the ocean ridge.
Goes into the mantle and stays in the mantle.
Disintegrates into the ocean water.
When looking at the age of crustal rock of the ocean floor,
The older rock is found by the oceanic trench and newer rock by the mid-ocean ridge.
The older rock is found by the mid-ocean ridge and newer rock by the oceanic trench.
All rocks in the ocean floor are the same age.
The age of the rocks cannot be determined.
What are the effects from the motion of the plates?
Changes in Earth's magnetic field
Formation of mountains and ocean trenches
Changes in the atmosphere
All of the above
Are all surfaces on Earth affected in the same way?
Yes, all surfaces are affected equally.
No, different surfaces are affected differently.
Only oceanic surfaces are affected.
Only continental surfaces are affected.
There is a possibility that another supercontinent could occur.
True
False
Only with human intervention
Only if the Earth's rotation stops
Some plates move faster than other plates.
True
False
They all move at the same speed
Plates do not move
Plates move about 2 inches per year.
True
False
They move 2 feet per year
They move 2 meters per year
Based on the diagram above, explain which continents could possibly connect together in the future.
How does the mantle move to cause convergent plate boundaries? Draw the motion of the mantle below this boundary on the diagram.
Draw all the possible motions of the mantle below the plate movements on the diagram.
Which of the following(s) show the evidence of seafloor spreading?
Ages of oceanic rocks
Magnetic strips on the seafloor.
Ages of Marine Animals
Mountain formaion
Which of the followings are the evidence of Earth's dynamic interior?
Mountain formation
Seismic waves
Volcanoes
Northern Lights
Both ridge push and slab pull are the force caused by (a) .
