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Friday Rocks

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

 1. 

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
 

 2. 

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

 3. 

Heat and pressure deep beneath Earth's surface can change any rock into
a.
chemical rock.
b.
gemstones.
c.
metamorphic rock.
d.
sedimentary rock.
 

 4. 

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

 5. 

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

 6. 

Rock that forms from the cooling of magma below the surface or lava at the surface is called
a.
sedimentary rock.
b.
metamorphic rock.
c.
igneous rock.
d.
coarse-grained rock.
 

 7. 

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

 8. 

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

 9. 

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.
 

 10. 

Igneous rock that formed from lava that erupted onto Earth's surface is called
a.
extrusive rock.
b.
intrusive rock.
c.
clastic rock.
d.
sedimentary rock.
 

 11. 

A series of processes on Earth's surface and interior that slowly changes rocks from one kind to another is called
a.
erosion.
b.
crystallization.
c.
the rock cycle.
d.
evaporation.
 

 12. 

Metamorphic rocks form because of
a.
heat and pressure
c.
magma and lava
b.
weathering and erosion
d.
the formation of sediment
 

 13. 

The crystals that form in slowly cooled magma produce ____ mineral grains.
a.
tiny
c.
fine-grained
b.
invisible
d.
large
 

 14. 

When magma cools deep inside Earth, ____ igneous rocks are formed.
a.
extrusive
c.
detrital
b.
fine-grained
d.
intrusive
 

 15. 

Metallic, submetallic, and nonmetallic are descriptions of a mineral's
a.
cleavage.
c.
luster.
b.
streak.
d.
color.
 

 16. 

Muscovite mica will peel off in flat sheets. This is an example of the physical characteristic called ____.
a.
streak
c.
fracture
b.
hardness
d.
cleavage
 

 17. 

Calcite will scratch gypsum. This is an example of the physical characteristics called ____.
a.
hardness
c.
streak
b.
cleavage
d.
fracture
 

 18. 

Which of the following physical properties can be expressed in numbers?
a.
color
c.
reaction to acid
b.
luster
d.
hardness
 

 19. 

When quartz breaks it forms a curved, irregular pattern called
a.
cleavage.
c.
hardness.
b.
luster.
d.
fracture.
 

 20. 

mc020-1.jpg  Which of these has cleavage?
a.
A
c.
C
b.
B
d.
D
 

 21. 

mc021-1.jpg
On Mohs' hardness scale, which of the following minerals is harder than quartz?
a.
apatite
c.
gypsum
b.
topaz
d.
talc
 

 22. 

mc022-1.jpg
The hardness of quartz is 7. This indicates that quartz will scratch all of the following minerals EXCEPT ____.
a.
talc
c.
apatite
b.
topaz
d.
calcite
 

 23. 

Which statement best describes minerals?
a.
Rocks are made of minerals.
c.
Crystals made by people are minerals.
b.
Minerals are made of rocks.
d.
Minerals can be solid, liquid or gas.
 

 24. 

The color of the powder that a mineral leaves on a piece of white, unglazed porcelain is called the mineral's
a.
luster.
c.
scratch.
b.
streak.
d.
hardness.
 

 25. 

mc025-1.jpg
One of the softest minerals is ____.
a.
topaz
c.
amethyst
b.
talc
d.
quartz
 



 
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