Rocks And Minerals: Question Preview (ID: 12752)


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The process of formation of sedimentary rocks take place when _______________.
a) magma cools down quckly
b) magma cools down slowly
c) rock material is deposited in layers
d) rock material is compressed under the Earth

Which of the following is a true statement about the rock cycle?
a) Heat, pressure, cooling, weathering and erosion, and deposition change rock.
b) the formation of rock within the cycle ends after metamorphic rocks form.
c) Weathering occurs in igneous rocks but never in sedimentary or metamorphic.
d) Sedimentary rock can revert to metamorphic rock but never to igneous rock.

Which of the following is the series of geologic processes that can transform magma into granite, granite into sand, and sand into sandstone?
a) Melting; heat and pressure; cooling
b) cooling; weathering and erosion; compacting and cementing
c) weathering and erosion; compacting and cementing; cooling
d) weathering and erosion; compacting and cementing; heat and pressure

volcanic eruptions are considered
a) extrusive processes
b) Mr. Swank's processes
c) sedimentary processes
d) intrusive processes

the movement of weathered rock material from one place to another by water, ice, or gravity is called:
a) weathering
b) sedimentation
c) deposition
d) erosion

the process of breaking down rock is _________________:
a) weathering
b) respiration
c) photosynthisis
d) calcification

Which term refers to the resistance of a mineral to scratches?
a) hardness
b) luster
c) fracture
d) streak

Cementation and compaction help produce ______________________.
a) sedimentarty rock
b) magma
c) diamonds
d) granite

Suppose some ingeous rocks are forced back down into the Earth where they melt. When they eventually cool and harden again, what kind of rock will they be:
a) igneous
b) reformed
c) sedimentary
d) metamorphic

What must happen to a sedimentary rock in order for it to change into an igneous rock?
a) it must be weathered and eroded
b) it must melt, then cool and harden
c) it must become cemented to other rocks
d) it must be put under pressure until new minerals form in it

what type of rock is formed from magma?
a) metamorphic
b) weathered
c) igneous
d) sedimantary

A geologist found a rock whose minerals have been squeezed into parallel bands by high pressure. The geologist probably found:
a) a meteorite
b) an igneous rock
c) a metamorphic rock
d) a sedimentary rock

When rocks are broken down into small pieces, like sand and gravel, the pieces are known as:
a) magma
b) debris
c) humus
d) sediment

Metamorphic rock is produced when _____________________.
a) rock materials is subjected to heat and pressure
b) basalt froms in the ocean
c) tectonic plates diverge
d) magma cools inside the crust

Granite is an igneous rock with large crystals. What does the size of the crystals tell you about granite?
a) it turned solid immediately
b) it turned solid very slowly
c) it started out as a sedimentary rock
d) it si about to transform into a metamorphic rock

Metamorphic rock that have a layered appearance are said to be ____________.
a) intrusive
b) clastic
c) foliated
d) extrusive

How do you distinguish a rock from a mineral?
a) Rocks are always bigger than minerals.
b) Minerals are usually made of small rocks that bind together.
c) Minerals are made of elements that form crystals. Rocks are made of one or more minerals.
d) Rocks can always be identified by their shape; minerals can not.

The color left by a mineral when it is rubbed against a piece of tile is its _____________.
a) hardness
b) luster
c) fracture
d) streak

A mineral can be identified by its_________________.
a) luster
b) hardness
c) fracture
d) all of the above

Why do metamorphic rocks rarely contain fossils?
a) These rocks are formed underwater, and the water dissolves the fossils.
b) The rock formation occurs from extremely hot magma deep inside the crust where organisms do not live
c) These rocks undergo extremely high pressure or temperature changes when formed, which would destroy fossils.
d) These rocks are usually formed from extremely hot magma or with severe lava explosions, which would destroy fossils.

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