Fiber Evidence Review

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

Tags

NGSS.MS-PS1-3

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

The smallest indivisible unit of a textile is a...

• Fiber
• Fabric
• Yarn
• Thread

A continuous strand of fibers that have been spun together is a...

• Fiber
• Fabric
• Yarn
• Thread

The first man-made fiber, also the most common synthetic fiber is...

• Rayon
• Acetate
• Polyester
• Acrylic

Scientists use this test to analyze the dyes in fabric evidence:

• Stain test
• Solvent test
• Infrared Spectroscopy
• Chromatography

Fiberglass is considered this type of fiber.

• Synthetic
• Natural

Tags

NGSS.MS-PS1-3

In a burn test, these fibers will often shrink back away from the flame.

• Synthetic
• Natural

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Fibers are considered what kind of evidence? 

• Individual
• Class
• Direct
• Indirect