Hair and Fiber Analysis Worksheet
Grade 11 Forensic Science worksheet covering the analysis of hair and fiber evidence, including microscopic examination and classification.
Includes
Standards
Topics
Hair and Fiber Analysis
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Read each question carefully and answer to the best of your knowledge. This worksheet assesses your understanding of hair and fiber analysis in forensic science.
1. Which of the following is NOT a primary component of hair?
Cuticle
Cortex
Follicle
Medulla
2. Synthetic fibers are derived from:
Plants
Animals
Petroleum-based chemicals
Minerals
3. The outermost layer of hair, composed of scales, is called the .
4. Natural fibers can be classified into two main categories: and .
5. The presence of a on a hair strand indicates that the hair was forcibly removed.
6. Briefly explain the difference between a questioned hair and a reference hair in forensic analysis.
7. Describe two characteristics that forensic scientists analyze when examining textile fibers.
8. Mitochondrial DNA can be extracted from the hair shaft.
True
False
9. Cross-sectional shape is a characteristic used to distinguish between animal and human hair.
True
False
Match the fiber type with its description.
10. Cotton
a. Natural plant fiber, often twisted or ribbon-like
11. Wool
b. Natural animal fiber, typically with scales
12. Nylon
c. Synthetic fiber, strong and elastic