Question

fibers in forensics: review worksheet
across
4 a device that is used to observe and identify fiber evidence in forensics
5 fiber evidence is classified in this way
7 one of the three types of natural fibers
9 fibers that are derived from plants, animals or minerals
11 a type of fiber transfer that occurs when a fiber moves from a source to a person or object
12 a type of weave pattern characterized by a weft that is woven over three or more warps and then under one
down
1 fibers may be analyzed using this test, but only if there are multiple fibers of the same type
2 a type of natural fiber that comes from a sheep
3 a type of transfer that occurs when fiber evidence moves from a source to a person/object and is then transferred to another person/object
6 categorized as a regenerated fiber that is made of polymers
8 a method of collecting fiber evidence from a crime scene or victim
10 a flexible, flat material made by interlacing threads/fibers

Explanation:

1. Forensic science uses microscopes to observe and identify fiber evidence.
2. Fiber evidence is classified as either natural or synthetic.
3. The three types of natural fibers are plant, animal, and mineral. Wool is a natural fiber from sheep.
4. Fibers derived from plants, animals or minerals are natural fibers.
5. Primary transfer is when a fiber moves from a source to a person or object.
6. A satin - weave is characterized by a weft that is woven over three or more warps and then under one.
7. When there are multiple fibers of the same type, they can be analyzed using a combustion test.
8. Secondary transfer occurs when fiber evidence moves from a source to a person/object and is then transferred to another person/object.
9. Rayon is a regenerated fiber made of polymers.
10. Tape - lifting is a method of collecting fiber evidence.
11. Fabric is a flexible, flat material made by interlacing threads/fibers.

Answer:

1. Microscope
2. Natural or synthetic
3. Plant/Animal/Mineral
4. Natural fibers
5. Primary transfer
6. Satin - weave
7. Combustion test
8. Wool
9. Secondary transfer
10. Rayon
11. Tape - lifting
12. Fabric