Make your own FingerPrints
To make our fingerprints, we first traced our hands on a piece of white paper. We then used an ink pad, and made fingerprints on corresponding with the finger outlines. Once dry, we began our investigation.
Fingerprints are Important
Fingerprints have been used by governments the world over for more than a hundred years and are still the most widely used form of identification.
Kids may already know about the identification use for fingerprints, but they will love to learn about the anatomical purpose of fingerprints. Without those one of a kind ridges, we wouldn't be able to grip things! Our fingerprints give our fingers the rough surface we need to create the friction that allows us to pick up a baseball or hold onto a pencil to take a test.
Kids will be interested to learn their fingerprints were on the tiny tips of their fingers long before they born, that they are 100% unique - no two people have exactly the same fingerprint. Explain how fingerprints are used to catch criminals and can also help to find lost children. Tell kids how fingerprints can leave an ‘invisible ink' of sorts that police can decode with special tools and equipment.
Fingerprints can last for years on an object if it is not cleaned after being touched. This can be observed easily on old silver. Pull out grandma's spoons or take a trip to the local flea market for a sample.
Types of fingerprints
Using a magnifying glass, discover your fingerprint type. Here are some examples of types of fingerprints.