WorksheetsCrystals TEST ASM
Total questions: 30
Worksheet time: 25mins
What is a crystal?
A pure material that can’t be changed.
Material with a regular,repeating arrangement of atoms.
A foggy like material.
What is crystallography?
Study of cells
Study of earth
Study of oceans
Study of crystals
What state or phase of material are crystals?
Gas
Plasma
Liquid
Solid
What is crystallization?
When crystals dissolve in a solution.
When crystals melt into liquid.
The formation of crystals
Which of the following is a way that crystals can form ?
When liquids cool and start to harden.
As precipitates in a chemical reaction.
When water evaporates from a solution (supersaturated).
All of the above.
Allotropy is
when more than one crystal structure is found in elemental solids
when metals and nonmetals have more than one crystal structure
When compounds (like chocolate) have more than one crystal structure
Polymorphism
Allotropy
the result when the periodic and repeated arrangement of atoms is perfect or extends throughout the entirety of the specimen without interruption
single crystal
polycrystalline
What crystal structure is this?
Hexagonal
Tetragonal
Simple Cubic
Triclinic
what kind of crystalline structure does the image depicts?
simple cubic
bcc
fcc
hcp
What kind of crystalline structure does the image depicts?
simple cubic
bcc
fcc
hcp
What kind of crystalline structure does the image depicts?
simple cubic
bcc
fcc
hcp
Which crystal structure does the picture show?
BBC (British Broadcasting Company)
BCC (Body Center Cubic)
SC (Simple Cubic)
FCC (Face-Centered Cubic)
Which crystal structure does the picture show?
BBC (British Broadcasting Company)
FCC (Face-Centered Cubic)
SC (Simple Cubic)
BCC (Body Center Cubic)
Which crystal structure does the picture show?
FCC (Face Center Cubic)
BCC ( Body Center Cubic)
BBC (British Broadcasting Company)
SC (Simple Cubic)
The more loosely packed particles are, the more workable they are.
True
False
Which of the following is the most workable of crystal structures?
FCC
BCC
HCP
Simple cubic
Sulfur can be amorphous (gummy/plastic) and then transform into rhombic yellow form when allowed to rest overnight. This transformation is known as
solid state phase change
workability
amorphous transformation
solid to liquid phase change
Unsaturated solutions:
Can dissolve more solute
Can NOT dissolve more solute
Saturated Solutions:
Can dissolve more solute
Can NOT dissolve more solute
Supersaturated Solutions:
Can dissolve more solute
Can NOT dissolve more solute
The most workable materials have few gaps and ______ slip planes.
no (none)
the most
the fewest
brittle
What side of the staircase on the periodic table are metals on?
left
right
top
bottom
What is a grain boundary?
Site where 5 crystals meet
Site where 9 crystals meet
Site where 2 crystals meet
Site where 15 crystals meet
What has a positive charge?
Protons
Neutrons
Electrons
What has no charge?
Protons
Neutrons
Electrons
What has a negative charge?
Protons
Neutrons
Electrons
Describe a method used to make a supersaturated solution. (3 pts)
Describe what makes a metal most workable (meaning, what makes them malleable and ductile)?. (3 pts)
