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scinece 9 B

Total questions: 41

Worksheet time: 23mins

Name
Class
Date
1.

A geologist who identifies, classifies, and analyzes minerals

a)

Zoologist

b)

Mineralogist

c)

Metasmith

2.

T or F: many minerals have similar colors

a)

True

b)

False

3.

Some minerals change color when exposed to _____

a)

Water

b)

Humans

c)

Air

4.

______ can change a minerals color

a)

Purities

b)

Impurities

5.

Even though the color of a specimen can vary becuase of its impurities, its ______ is always the same color

a)

Streak

b)

Luster

c)

Facets

6.

T or F: not all minerals produce a streak

a)

True

b)

False

7.

The amount and quality of the light that it reflects from its surface is its _______

a)

Streak

b)

Luster

8.

Materials can have either metallic or nonmetallic (a)  

9.

Glassy or vitreous, pearly, adamantine, silky, greasy, waxy, earthy or dull, and resinous are all categories of _________ luster

a)

Metallic

b)

Nonmetallic

10.

T or F: crystals come in many different sizes and shapes

a)

True

b)

False

11.

When they have room, crystals build a shape based on the arrangements of _______ in the mineral

a)

Atoms

b)

Chemicals

c)

Compounds

12.

Crystals grow larger by _______ , where atoms are added one-by-one to the existing crystal structure.

a)

Succretion

b)

Accretion

c)

Facets

13.

Each mineral tends to form distinctive crystals with characteristic faces, called ______

a)

Accretion

b)

Facets

c)

Cleavage

14.

Minerals can break either in fractures or cleavage

a)

True

b)

False

15.

Some minerals can split into flat sheets or along certain planes, creating new facets

(a)  

16.

Perfect, good, fair, poor, or none are the five ratings for

a)

Cleavage

b)

Luster

c)

Fracture

17.

_______ also involves the number of directions in which a mineral breaks

a)

Fracture

b)

Cleavage

18.

Minerals that break without cleavage planes (a)  

19.

(a)   properties can include uneven, hackle, fibrous, or conchoidal

20.

Mineralogists can identify minerals by their hardness. The scale to classify and identify minerals by their hardness is the _____

a)

Acid test

b)

Mohs scale

c)

Flame test

d)

Magnetism

21.

T or F: talc is a 10 on the Mohs scale

a)

False

b)

True

22.

Numbers on MOhs scale show only _______ hardness

a)

Complete

b)

Relative

23.

The ratio of a minerals density to the density of water at 4degrees C is its ______

a)

Flame test

b)

Acid test

c)

Specific gravity

24.

The _______ of a substance can be estimated by handling a sample

a)

Molecules

b)

Specific gravity

25.

Mineral reactions to hydrochloride acid produce fizz in this test

a)

Flame test

b)

Acid test

c)

Magnetism

d)

Radioactivity

26.

Other tests for minerals can include radioactivity, luminescence, and refraction

a)

True

b)

False

27.

The physical properties of a mineral include color, streak, luster, crystal shape and growth, cleavage and fracture, hardness, and specific gravity

a)

True

b)

False

28.

What is the most reliable way to identify a mineral using color?

a)

Looking at it

b)

Luster

c)

Streak test

29.

What familiar material has an adamantine luster?

a)

Diamond

b)

Gold

c)

Platinum

30.

What kind of luster should native silver have?

a)

Nonmetallic

b)

Metallic

31.

Check all that apply- crystals grow large by accretion which can occur———

a)

In concentrated water solutions

b)

Cooling molten rock

c)

Cooling chemical vapors

32.

Which mineral property describes how will a crystal breaks along certain flat surfaces?

a)

Cleavage

b)

Fracture

33.

What are five common objects that be used to estimate a minerals hardness?

a)

Copper coin

b)

A steel knife blade

c)

A hardened metal file

d)

Fingernail

e)

Glass

34.

Process of mineralogy involves getting sample, running tests on the samples, identify physical and chemical properties, and then identify, classify, and analyze them

a)

True

b)

False

35.

Which of these options is not one of the physical properties tested to identify a mineral

a)

Color

b)

Magnetism

c)

Hardness

d)

Age

36.

Platinum (Pt) is a

a)

Ore

b)

Native mineral

c)

Mineral mixture

37.

Quartz (SiO2) is a

a)

Ore

b)

Compound mineral

c)

Native mineral

d)

Mineral mixture

38.

Rock that contains both the minerals malachite and azurite is

a)

Ore

b)

Compound mineral

c)

Native mineral

d)

Mineral mixture

39.

A rock that is a useful source of iron (Fe)

a)

Ore

b)

Compound mineral

c)

Native mineral

d)

Mineral mixture

40.

Calcite (CaCO3) is a

a)

Ore

b)

Compound mineral

c)

Native mineral

d)

Mineral mixture

41.

Diamond is a

a)

Ore

b)

Compound mineral

c)

Native mineral

d)

Mineral mixture