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Rocks and Mineral Composition

Total questions: 21

Worksheet time: 13mins

Name
Class
Date
1.
This rock was formed when magma cooled very slowly inside the Earth. What specific type of rock is it?
a)
Intrusive Igneous Rock
b)
Extrusive Igneous Rock
c)
Foliated Metamorphic Rock
d)
Clastic Sedimentary Rock
2.
This rock formed when lava cooled very quickly on Earth's surface. What specific type of rock is it?
a)
Extrusive Igneous Rock
b)
Intrusive Igneous Rock
c)
Non-Foliated Metamorphic Rock
d)
Biochemical Sedimentary Rock
3.
When you watch a volcano erupt molten rock, you are seeing _____
a)
Lava
b)
Magma
c)
Mineral Crystals
d)
Igneous Rocks
4.
What are the 3 major types of rocks?
a)
Igneous, Metamorphic, Sedimentary
b)
Metamorphic, Igneous, Cementation
c)
Brown, Red, Gray
d)
Streak, Hardness, Breakage
5.
This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
6.
When sediments are pressed together tightly, this is called ____________.
a)
Compaction
b)
Cementation
c)
Weathering
d)
Erosion
7.
The process in which dissolved minerals crystallize and glue sediment together.
a)
compaction
b)
deposition
c)
organic rock
d)
cementation
8.
The process when rocks break into smaller pieces due to exposure to natural elements is called
a)
erosion
b)
weathering
c)
sediments
9.
Extreme Heat and Pressure creates a _________ rock.
a)
Igneous
b)
Metamorphic
c)
Sedimentary
d)
Mineral
10.

What is a natural occurring, inorganic solid, with a specific composition?

a)

mineral

b)

rock

c)

magma

d)

lava

11.

What does vesicular mean?

a)

has lots of crystals in it

b)

has lots of gas pockets

c)

has lots of gas as it melts

d)

has a coarse texture

12.

Which of the following is an example of a sedimentary rock?

a)

marble

b)

quartz

c)

sandstone

d)

magma

13.
A geologist is most likely to find igneous rocks ___.
a)
at the base of a volcano
b)
at the bottom of a lake
c)
inside a cave
d)
at the mouth of a river
14.
Geologists classify metamorhic rock according to whether the rock is___.
a)
foliated or non foliated
b)
intrusive or extrusive
c)
clastic or organic
d)
compacted or cemented
15.

Felsic rocks are usually

a)

light in color

b)

dark in color

c)

very dense

d)

contain gas pockets

16.

Which of these is NOT an igneous rock?

a)

pumice

b)

granite

c)

basalt

d)

gneiss

17.

Which sedimentary rock is most likely to be changed to slate during regional metamorphism?

a)

breccia

b)

dolostone

c)

conglomerate

d)

shale

18.

Which sedimentary rock is most likely formed from beach deposits that were lithified?

a)

conglomerate

b)

sandstone

c)

shale

d)

limestone

19.

A mineral that breaks naturally along flat planes like those show exhibits the property of

a)

fracture

b)

cleavage

c)

hardness

d)

luster

20.

What mineral will fizz when treated with dilute hydrochloric acid (HCl)?

a)

quartz

b)

biotite

c)

hornblende

d)

calcite

21.

A sedimentary rock has sand sized grains and scratches glass. What mineral does it most likely have?

a)

quartz

b)

calcite

c)

coal

d)

galena

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