Forensic Science - Fabrics

Multiple Choice

Why is it important to identify and describe weave patterns of textile samples in forensic science?

• To determine the origin of the textile in criminal investigations

• To improve the quality of textile manufacturing

• To enhance the color of fabrics

• To increase the cost of textile production

Multiple Choice

Why is the collection of fibers within 24 hours critical in a forensic investigation?

• Because fibers degrade quickly after 24 hours

• Because fibers become invisible after 24 hours

• Because fibers are only present for a few minutes

• Because fibers are not important evidence

Multiple Choice

Which of the following can fiber evaluation reveal during a forensic investigation?

• Type of fiber

• Color

• Possibility of violence

• All of the above

Multiple Select

Which of the following are common methods used to analyze fibers in forensic science?

• Microscopy

• Infrared spectroscopy

• DNA sequencing

• Chemical structure analysis

Multiple Choice

Which fiber produces a small amount of light ash residue when burned, according to the Fiber Burn Analysis Key?

• Rayon

• Cotton

• Wool

• Silk

Multiple Choice

Which of the following fibers can be identified by the presence of diagonal lines that intersect under a microscope?

• Wool

• Cotton

• Acrylic

• Hemp

Multiple Select

Select all the animals from the images that are sources of natural fibers used in textiles.

• Sheep

• Camel

• Rabbit

• Llama

Multiple Choice

Which animal fibers are commonly used in textiles?

• Wool from sheep, Cashmere and mohair from goats, Angora from rabbits, Hair from alpacas, llamas, and camels

• Cotton from plants, Silk from silkworms, Nylon from chemicals

• Polyester from petroleum, Rayon from wood pulp, Linen from flax

• Leather from cows, Fur from foxes, Feathers from birds

Multiple Choice

What makes silk from caterpillar cocoons different from other animal fibers?

• It is longer and not as easily shed

• It is more brittle over time

• It is dissolved by strong acids

• It absorbs water easily

Multiple Select

Which of the following are properties of plant fibers?

• Can absorb water

• Are insoluble in water

• Are resistant to damage from harsh chemicals

• Can be dissolved by strong acids

Multiple Choice

_______ is an example of a synthetic fabric.

• Wool
• Silk
• Cotton
• Nylon

Multiple Choice

Which of the following plant fibers is most commonly used in textiles?

• Cotton

• Coir

• Hemp

• Manila

Multiple Select

Which of the following are mineral fibers?

• Fiberglass

• Asbestos

• Rayon

• Cotton

Multiple Choice

_______ is an example of a synthetic fabric.

• Wool

• Silk

• Cotton

• Nylon

Match

Match the following

• Natural Materials

• Synthetic Materials

Materials that are only found in nature.

Materials that are created by humans.

Natural Material Image

Synthetic Material Image

• Materials that are only found in nature.

• Materials that are created by humans.

• Natural Material Image

• Synthetic Material Image

Drag and Drop

A natural material is ​

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while a synthetic material is ​

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Drag these tiles and drop them in the correct blank above

produced by the earth

produced by man.