Hair/Fibers

How could you identify a wool fiber?

• If there is a mix of colors

• If there are straight lines

• If there are cuticle scales

• If there are multiple specks

What are the 3 parts of a hair?

• Cuticle, fiber, cortex

• Cortex, follicle, medulla

• Imbricate, spinous, coronal

• Cuticle, cortex, medulla

What type of cuticle scale patterns do humans have?

• Imbricate

• Spinous

• Coronal

• Spiral

How could you identify a rayon fiber?

• If you see wavy lines

• If you see straight lines

How could you identify polyester fibers?

• If you see wavy lines

• If you see many specks (no lines)

• If you see straight lines

What is the medulla index for the pictured hair?

• 0.25

• 0.5

• 0.75

• 0.9

What type of cuticle scale pattern is this?

• Imbricate

• Spinous

• Coronal

What is the medulla pattern?

• Continuous

• Spaced

• Broken

• Absent

Tags

NGSS.MS-LS4-4

What are the two groups of fibers?

• Fake fibers and real fibers

• Thick fibers and thin fibers

• Natural fibers and synthetic fibers

• Garment fibers and faux fibers

Tags

NGSS.MS-PS1-3

What part of the hair would make it individual evidence instead of class evidence?

• Cuticle

• Medulla

• Follicle

• Cortex