9. Fingerprint
Different fingerprints have been collected in one of the open drawers. We will examine them to compare them with those of the suspects. Essentially, the fingerprints of our fingers are unique. At present, fingerprints are digitized and archived in huge databases that can be checked to match.
ACTIVITY
We learn to analyze fingerprints. We work in groups. We will take our footprints, analyze them and pass them to a colleague in the group to do the same and have two opinions. We put it in common.
Materials:
Sheets of white paper
Pencils
Cello
Magnifying glass
Process:
We scratch a paper with a pencil.
We make a square enough to put our finger
Rub the index finger over the scratches of the pencil
We put a strip of cello on the finger
Remove the strip and stick it on another sheet
We observe the mark that has been marked with the magnifying glass.
We take a picture or do a drawing.
We learn to analyze fingerprints. We work in groups. We will take our footprints, analyze them and pass them to a colleague in the group to do the same and have two opinions. We put it in common.
Materials:
Sheets of white paper
Pencils
Cello
Magnifying glass
Process:
We scratch a paper with a pencil.
We make a square enough to put our finger
Rub the index finger over the scratches of the pencil
We put a strip of cello on the finger
Remove the strip and stick it on another sheet
We observe the mark that has been marked with the magnifying glass.
We take a picture or do a drawing.
We interpret the prints. Each person has their own footprints, but there are basic patterns that are always found and are the ones that help to classify them. Look at the drawings and fill in the chart.
Okay. We scored points.
If until now we have achieved more than .... points, we put the plate SUPERSCIENTIST
If until now we have achieved more than .... points, we put the plate SUPERSCIENTIST
![Picture](/uploads/3/7/6/2/37629979/published/sign-next_9.png?1488472297)
Great! We have already done all the tests and we are in the final stretch. We go back to the beginning and we continue to point 10, the suspects