Earth's Layers
Plate Boundaries
Continental Drift
Fossils & The Goelogic Time Scale
Density, Age and Earth's Structures
100
The inner core is made mostly of solid iron and nickel.
True
100
A transform boundary is where two plates move toward each other.
False (convergent)
100
Alfred Wegener’s theory of continental drift said that the continents were once joined together in a supercontinent called Pangaea.
True
100
Fossils are always the bones of the original organism.
False
100
Denser materials sink toward the center of a planet during formation.
True
200
What is Earth’s outermost layer called?
A) Mantle
B) Lithosphere
C) Crust
D) Outer core
C) Crust
200
When two plates move apart, it’s called a:
A) Subduction zone
B) Convergent boundary
C) Transform boundary
D) Divergent boundary
D) Divergent boundary
200
Which evidence supports Wegener’s theory of continental drift?
A) Fossils found on different continents match
B) Mountains line up on different continents
C) The continents fit together like puzzle pieces
D) All of the above
D) All of the above
200
What is a fossil?
A) Any dead organism
B) The preserved remains or traces of once-living organisms
C) A copy of a rock
D) An unusual type of mineral
B) The preserved remains or traces of once-living organisms
200
Which material would make up the innermost layer of a planet?
A) Tungsten (density 19.25 g/mL)
B) Silicon (density 2.33 g/mL)
C) Lead (density 11.34 g/mL)
D) Iron (density 7.87 g/mL)
Tungsten (density 19.25 g/mL)
300
Which layer is made of molten metal and creates Earth’s magnetic field?
A) Mantle
B) Outer core
C) Inner core
D) Lithosphere
B) Outer core
300
When two plates collide and one moves under the other, it’s called:
A) Divergent boundary
B) Transform boundary
C) Subduction zone
D) Mantle plume
C) Subduction zone
300
The ridge in the middle of the ocean represents what type of boundary?
A) Convergent
B) Divergent
C) Transform
D) Subduction
B) Divergent
300
What does the geologic time scale show?
A) Fossil age in years
B) Life forms and geologic events in Earth’s history
C) How fossils were formed and when they were discovered
D) The temperature of each time period
B) Life forms and geologic events in Earth’s history
300
Where is the youngest seafloor found?
A) Near subduction zones
B) On continental crust
C) Near trenches
D) At the mid-ocean ridge
D) At the mid-ocean ridge
400
The asthenosphere is best described as:
A) The soft rock layer that bends like plastic
B) The hard, solid outer layer
C) A liquid layer of metal
D) The outermost rocky crust
A) The soft rock layer that bends like plastic
400
What type of plate movement caused Pangaea to break apart?
A) Divergent
B) Transform
C) Convergent
D) Volcanic
A) Divergent
400
The trenches shown on either side of the ocean represent which type of boundary?
A) Convergent
B) Divergent
C) Transform
D) Strike-slip
A) Convergent
400
What does the relative age of a rock tell you?
A) Its exact age based on its surroundings
B) How it was formed
C) Its age compared to other rocks
D) How much carbon it contains
C) Its age compared to other rocks
400
The seafloor gets older as you move:
A) Toward the mid-ocean ridge
B) Away from the ridge
C) Toward volcanoes
D) Toward the equator
B) Away from the ridge
500
What process moves heat through the mantle and causes material to rise and sink?
A) Conduction
B) Convection
C) Radiation
D) Rotation
B) Convection
500
Which type of boundary is most likely to cause earthquakes?
A) Convergent
B) Transform
C) Divergent
D) Mantle
B) Transform
500
What feature forms where oceanic crust sinks beneath continental crust?
A) Rift valley
B) Trench
C) Mid-ocean ridge
D) Mountain
B) Trench
500
In a rock layer, where are the oldest fossils found?
A) At the bottom
B) In the middle
C) At the top
D) They are all the same age
A) At the bottom
500
What layer of Earth is solid metal and extremely hot?
A) Inner core
B) Mantle
C) Outer core
D) Asthenosphere
A) Inner core