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What are fingerprints?
Fingerprints are marks left by tiny ridges of your fingertip. These markings are left by dust or other particles on the oil of your skin.
What are the 4 main types of fingerprints?
Plain Arch, Tented Arch, Loop, Whorl
What type of fingerprint has ridges that enter on one side and flow out the other side with a rise or wave in the centre?
Plain Arch
What type of fingerprint has ridges that enter on one side and peak like a mountain then flow out the other side with a rise or wave in the centre?
Tented Arch
What type of fingerprint has ridges that enter on one side the loop around before exiting from the same side from which it entered?
Loop
What type of fingerprint forms a spiral or a circle?
Whorl
How are fingerprints used as evidence?
Answers will vary.
Is it easier to lift fingerprints off a smooth surface or a rough surface?
Smooth surface
