Grade 9 Hair Analysis Worksheet
Explore the science of hair analysis with this worksheet for Grade 9 students, covering hair structure, growth phases, and forensic applications.
Includes
Standards
Topics
Grade 9 Hair Analysis Worksheet
Name:
Date:
Score:
Read each question carefully and provide your best answer. Some questions may require critical thinking and application of scientific principles related to hair analysis.
1. What is the outermost layer of a hair shaft called?
Cortex
Medulla
Cuticle
Follicle
2. Which hair growth phase is the longest and involves active hair growth?
Catagen
Anagen
Telogen
Exogen
3. The pigment responsible for natural hair color is called .
4. Forensic scientists use hair analysis to determine if hair is of human or origin.
5. A hair without a root can provide DNA evidence.
True
False
6. The medulla pattern of human hair is always continuous.
True
False
7. Briefly describe the three main parts of a hair shaft.
8. Explain two ways hair analysis can be used in forensic investigations.
Match each term on the left with its definition on the right.
9. Keratin
a. The innermost layer of the hair shaft
10. Medulla
b. The tough, fibrous protein that makes up hair
11. Anagen
c. The active growth phase of hair
Use the words below to complete the sentences.
12. The contains the pigment granules that give hair its color.
13. Hair can provide DNA evidence, which is inherited from the mother.
14. The outermost layer of the hair, the , is made of overlapping scales.