WorksheetsBryant- Fiber Evidence Review
Total questions: 22
Worksheet time: 11mins
Synthetic
Natural
Which of the answers describe natural fibers?
rayon, nylon, wool
cotton, polyester, cashmere
linen, cotton, silk
silk, spandex, polyester
Which of the following is a synthetic fiber?
rayon
silk
cashmere
polyester
What is the thickness and shape of synthetic fibers?
thinner than natural fibers and spiky on the surface
thicker than natural fibers and flat
as thick as natural fibers and round
it can be manufactured with any thickness and shape
This comes from a seedpod of a plant. It is the most common plant fiber used in textiles
Coir
Cotton
Flax
Hemp
Fibers are classified as either:
natural fibers or synthetic fibers.
polymers or synthetic fibers.
acrylic fibers or plant fibers.
olefins or synthetic fibers.
Natural fibers come from:
animals.
plants.
minerals that are mined from the ground.
All of these choices.
All plant fibers share the common polymer that is:
cellulose.
protein.
sulfuric acid.
None of these choices.
How is hair or fiber evidence collected?
Using forceps.
Using sticky tape.
Using a vacuum.
All of the above.
Fibers are an excellent source of trace evidence because
they are easily transferred from a victim to a suspect
they are often overlooked by a suspect
they can be easily collected and stored
all of these choices
Which of the following are ways to collect fiber evidence?
vacuuming
adhesive tape
dusting
forceps
burning
A flexible, flat material made by interlacing yarns (or “threads”)
monomer
yarn
fiber
textile
When studying fibers, a forensic scientist will ask questions about
type of fiber
color of fiber
number of fibers found
all of the above
Natural fibers come from animals, plants, and
fungi
minerals
bacteria
detritis
A disadvantage of _____ fibers is that they can deteriorate in bright sunlight and melt at a lower temperature.
natural
synthetic
The most common plant fiber is
sisal
flax
hemp
cotton
About how much of the fibers used are synthetic?
20%
90%
50%
75%
