WorksheetsForensics- Hairs, Fibers, Chromatography
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
The protein that makes up hair is called _____
a)
ninhydrin
b)
pigments
c)
medulla
d)
keratin
2.
The smallest unit of textile material that has a length many times greater than its diameter is..
a)
keratin
b)
cuticles
c)
fibers
d)
chromatography
3.
The amount of light that is able to pass through something (Used to study the medulla) is ______
a)
opacity
b)
chromatography
c)
thickness
d)
keratin
4.
The physical separation of mixtures into individual components is..
a)
chromatography
b)
opacity
c)
latent
d)
trace evidence
5.
Two or more substances that are mixed together but not chemically combined is a ___
a)
compound
b)
mixture
c)
keratin
d)
chromatography
6.
Two or more substances that are chemically combined is a ___
a)
compound
b)
mixture
c)
solvent
d)
solute
7.
In ocean water, the salt is the ___
a)
mixture
b)
medulla
c)
solvent
d)
solute
8.
In ocean water, water is the ___
a)
medulla
b)
solute
c)
solvent
d)
medulla
9.
The deepest layer of hair (compared to the lead of a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
10.
The middle layer of a hair (compared to the wood of a pencil) is the __
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
11.
The outside layer of a hair (compared to the ink on a pencil) is the ___
a)
medulla
b)
cortex
c)
cuticle
d)
keratin
12.
Which is NOT a characteristic of the medulla that varies and therefore should be observed?
a)
scales
b)
opacity
c)
thickness
d)
continuity
13.
Which of the following is NOT one of the characteristics of the cuticle that varies and should be observed?
a)
scales
b)
continuity
c)
pigment
d)
thickness
14.
Which layer of hair is the most important component when determining which individual human the hair came from?
a)
medulla
b)
cortex
c)
cuticle
15.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
100 %
