Qualitative Analysis
Fibers
Fingerprints
100
True or false: Soluble means cannot be dissolved
False
100
True or false: Fibers can be used as evidence for a person or an item being at the scene of a crime.
True
100
True or false: We leave fingerprints on everything we touch
True
200
Which kind of testing paper turns red in an acid and blue in a base?
Litmus paper
200
What kind of fibers look scaly under the microscope?
Natural/Animal fibers
200
What is the most common kind of fingerprint?
Loop
300
Which test would be used on a urine sample to test for diabetes?
Benedict's test
300
Is this a natural fiber or synthetic fiber?
Natural fiber - specifically cotton
300
True or false: Identical twins have the same fingerprints
False
400
What is reagent?
a substance or mixture for use in chemical analysis or other reactions to start or test a chemical reaction
400
What is refraction index?
Measurement of how much light passes through a the material
400
What is fingerprint minutiae?
Minutiae are unique ridges and valleys on a fingerprint
500
What is the enzyme in saliva that breaks down starch?
Amylase
500
If you burn a fabric sample an it burns quickly, smells like burning paper, and produces gray ash, it is likely to be which material?
Cotton
500
What does AFIS stand for?
Automated Fingerprint Identification System