Fingerprints are one of detective's best clues. They
often help solve the crime and catch the criminal. I thought my boys would have
fun learning more about them.
Here's how my sons (ages 6 and 10) took their own
fingerprints and examined them for three key characteristics.
Supplies
paper
sharp pencil
transparent tape
magnifying glass
Step-by-Step
1. Hold the pencil at an angle so all of the graphite
makes contact with the paper. Scribble back and forth until you have a large
block of solid pencil lead on the paper.
2. On another piece of paper, lay your hand flat with
fingers splayed, and trace around it.
3. Now starting with the pinky on that hand, rub the end
of the finger on your scribbled pencil paper until it's covered.
4. Cover it with a small piece of transparent tape and
pull it away from the skin.
5. Place the tape on the tip of that same finger on your
hand drawing. Repeat with all the other fingers.
6. Look at the prints under a magnifying glass. Do you
have an arch (what looks like a mountain shape), a loop (where the skin ridges
head in one direction and then double back upon themselves), or a whorl (which
looks a lot like the ridges of your skin swirling out from the center)?
Read
We used some great non-fiction to better understand ridge
skin patterns and how detectives use fingerprints to solve crimes.
Our youngest son enjoyed some other detective fiction
books as well.
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