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Sedimentary Rocks

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.
Geologists classify sedimentary rocks into three major groups: __________ rock, chemical rock, and organic rock.
a)
clastic
b)
coal
c)
limestone
2.
Which is the process by that breaks up rock on Earth's surface?
a)
deposition
b)
erosion
c)
compaction
d)
weathering
3.
__________ is a sedimentary rock formed from the remains of swamp plants buried in water.
a)
clastic
b)
coal
c)
limestone
4.
Which forms when minerals dissolved in a water solutuion crystallize?
a)
clastic rock
b)
organic rock
c)
chemical rock
d)
sediment
5.
__________ is a sedimentary rock formed from coral, shells, and skeletons that piled up on the ocean floor.
a)
clastic
b)
coal
c)
limestone
6.
Which is an example of an organic rock?
a)
breccia
b)
coal
c)
rock salt
d)
shale
7.
__________ is the process by which sediments are pressed together.
a)
compaction
b)
sediment
c)
size
8.
Which rock can be a chemical or an organic rock?
a)
limestone
b)
sandstone
c)
shale
d)
conglomerate
9.
Sand grains, pebbles, mud, shells, and leaves are all examples of __________.
a)
compaction
b)
sediment
c)
size
10.
Clastic rocks are grouped by the __________ of the rock fragments of which they are made.
a)
compaction
b)
sediment
c)
size
11.

Forms where the remains of plants and animals are deposited in layers.

a)

clastic rock

b)

organic rock

c)

chemical rock

12.

Forms when minerals dissolved in a water solution crystallize.

a)

clastic rock

b)

organic rock

c)

chemical rock

13.

Forms when rock fragments are squeezed together.

a)

clastic rock

b)

organic rock

c)

chemical rock

14.

The process by which running water, wind, or ice carry away bits of broken-up rock.

a)

sediment

b)

weathering

c)

erosion

15.

The process that presses sediments together.

a)

deposition

b)

compaction

c)

cementation

16.

Small, solid pieces of material that come from rocks or living things.

a)

sediment

b)

weathering

c)

erosion

17.

The process by which sediment settles out of the water or wind carrying it.

a)

deposition

b)

compaction

c)

cementation

18.

The effects of freezing and thawing, plant roots, acid, and other forces on rock.

a)

sediment

b)

weathering

c)

erosion

19.

The process in which dissolved minerals crystallize and glue particles of sediment together.

a)

deposition

b)

compaction

c)

cementation