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Fingerprints!
Help your students memorize the different types and patterns of fingerprints.
20
Science
6th Grade
03/08/2007

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Cards

Term
Plain and Tented Arch, Right and Left Loop, Whorl, Composite
Definition
The different friction ridge patterns.
Term
[image] What friction ridge pattern is this?
Definition
Right Loop
Term
What is a loop fingerprint?
Definition
In this pattern, the ridges enter at one side, curve, and come back to the same side.
Term
[image] What friction ridge pattern is this?
Definition
Plain Arch
Term
What is a plain arch fingerprint?
Definition
It looks like an upside-down ā€œUā€.
Term
[image] What friction ridge pattern is this?
Definition
Whorl
Term
What is a whorl fingerprint?
Definition
They have a spiral or circular pattern and can have pockets or double loops.
Term
What is a pocket?
Definition
A small circle of ridges in the middle of a whorl.
Term
What is a double loop?
Definition
It has two whorls that meet in the center.
Term
[image] What friction ridge pattern is this?
Definition
Tented Arch
Term
What is a composite fingerprint?
Definition
A combination of all the types of fingerprints: plain and tented arch, loop and whorl.
Term
What is a minutiae?
Definition
The details of a fingerprint.
Term
What is an end?
Definition
Where a ridge starts and stops.
Term
What is a bifurcation?
Definition
The place where a ridge divides.
Term
What is an enclosure or island?
Definition
Ridges that split and come back together.
Term
What is a patent fingerprint?
Definition
You can see this fingerprint without chemicals or equipment.

Sweat and oil can leave this type of finger print on glass or metal.
Term
What is a plastic fingerprint?
Definition
This type of fingerprint is molded into soft surfaces such as wax, soap, or wet cement.
Term
What is a latent fingerprint?
Definition
This type or fingerprint must be developed before it can be seen on surfaces.
Term
What do Crime Scene Investigators (CSIs) use to make latent prints visible?
Definition
Lasers, filtered lamps and other strong light sources. They then develop the prints by using a heated super glue.
Term
CSIs sometimes use this which sticks to oil and sweat, to see a fingerprint.
Definition
Metal powder
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