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Rock Cycle Test 321

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

A type of rock that forms deep within the Earth when magma solidifies is called
a.
sedimentary.
c.
organic.
b.
metamorphic.
d.
igneous.
 

 2. 

A type of rock that forms under high temperature and pressure but is not exposed to enough heat to melt the rock is
a.
sedimentary.
c.
organic.
b.
metamorphic.
d.
igneous.
 

 3. 

After they are deposited, sediments, such as sand, are turned into sedimentary rock when they are compacted and
a.
cemented.
c.
melted.
b.
metamorphosed.
d.
weathered.
 

 4. 

An igneous rock with large grains forms when
a.
magma cools very slowly.
c.
magma cools quickly outside a volcano.
b.
magma cools very quickly.
d.
magma cools quickly in water.
 

 5. 

Chemical sedimentary rock forms when
a.
magma cools and solidifies.
b.
minerals are twisted into a new arrangement.
c.
minerals crystallize from a solution.
d.
sand grains are cemented together.
 

 6. 

Which of these causes the breakdown of rock?
a.
weathering
c.
stratification
b.
intrusion
d.
extrusion
 

 7. 

Which type of rock cooled very slowly?
a.
hard fossiliferous limestone
c.
loose sandstone
b.
large grained granite
d.
fine-grained basalt
 

 8. 

Sedimentary rock is formed when grains of sediment undergo
a.
compaction and cementation.
c.
melting.
b.
metamorphism.
d.
eruption.
 

 9. 

Which type of rock can weather and wear away to form sediment?
a.
igneous rock
c.
metamorphic rock
b.
sedimentary rock
d.
all of the above
 

 10. 

When magma or lava cools down enough, it solidifies to form
a.
sedimentary rock.
c.
igneous rock.
b.
metamorphic rock.
d.
all of the above
 

 11. 

Fast-cooling lava will most likely form ____ igneous rock.
a.
small-grained
c.
nonfoliated
b.
foliated
d.
large-grained
 

 12. 

Chemical limestone forms
a.
on the ocean floor.
c.
on lava plateaus.
b.
in a magma chamber.
d.
in fissures.
 

 13. 

Which type of rock can change into metamorphic rock?
a.
igneous rock
c.
metamorphic rock
b.
sedimentary rock
d.
all of the above
 

 14. 

Which kind of rock is formed when volcanic lava cools?
a.
sedimentary
c.
igneous
b.
metamorphic
d.
magma
 

 15. 

A student wants to study how igneous rock changes to sedimentary rock. Is this a good project if the student needs to complete the study within a month?
a.
Yes because the changes will happen quickly and be significant.
b.
Yes because the changes will be easily observed since they are very obvious.
c.
No because the difference between igneous rock and sedimentary rock is not noticeable.
d.
No because the changes will take much longer than a month to occur.
 

 16. 

Rocks found on Earth are generally classified as sedimentary, metamorphic, or igneous. On which basis are these classifications made?
a.
where the rocks are found
c.
the color and shape of the rocks
b.
how the rocks were formed
d.
the chemical composition of the rocks
 

 17. 

The formation of metamorphic rocks depends on all of the following except
a.
the composition of the parent rocks.
c.
temperature.
b.
Earth's magnetic field.
d.
pressure.
 

 18. 

When rocks undergo weathering, they become
a.
magma.
c.
sediment.
b.
igneous rocks.
d.
volcanic cones.
 

 19. 

Igneous rocks can be converted into sedimentary rock by undergoing which of the following processes?
a.
weathering and erosion
c.
subduction and melting
b.
cooling and crystallization
d.
compaction and cementation
 

 20. 

What type of rock results from the cooling of lava from a volcano?
a.
sedimentary
c.
igneous
b.
bituminous
d.
metamorphic
 

 21. 

Igneous rocks are classified by where they are formed. Which type of igneous rock forms underground?
a.
extrusive
c.
volcanic
b.
intrusive
d.
ash
 

 22. 

Igneous rocks form from
a.
sediment.
c.
gravel.
b.
mud.
d.
magma.
 

 23. 

When an igneous rock is changed by the action of heat and pressure it becomes
a.
granite.
c.
a metamorphic rock.
b.
limestone.
d.
a sedimentary rock.
 

 24. 

Some of Earth's rocks are formed by the cooling of a molten material called
a.
magma.
c.
coal.
b.
ore.
d.
lime.
 

 25. 

What type of rock is sandstone?
a.
igneous
c.
ferromagnetic
b.
metamorphic
d.
sedimentary
 

 26. 

Extrusive rocks have small grains because they —
a.
cool quickly.
c.
contain rare minerals.
b.
harden underground.
d.
have a rough mixture.
 



 
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