Trace Evidence

Who coined the phrase "Every Contact Leaves a Trace"?

• Walter McCrone

• Edmond Locard

• Calvin Goddard

• Francis Galton

What characteristic would be LEAST useful when examining a fiber?

• dye content

• length

• direction and number of twists

• diameter

If a root is found on a hair, it may have DNA in it. What type of characteristics will this have?

• class

• group

• personal

• individual

Tags

NGSS.HS-LS3-1

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

Long strings that make up synthetic fibers are called...

• Monomers
• Macromolecules
• Polymers
• Threads

Tags

NGSS.MS-PS1-1

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

• Rayon
• Acetate
• Polyester
• Acrylic

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

Pollen and Spore evidence can be found:

• Almost anywhere
• Only on cars and clothing
• Only on money and certain narcotics
• Only on food

Tags

NGSS.MS-LS2-4