Sia and Sabina showed their party guests how to make fingerprints with ink and compare them. They explained that each person has unique fingerprints.
That’s why detectives look for fingerprints at a crime scene. If they find fingerprints and can match them to their owner, that can help them identify who was at the scene! How can we find and identify fingerprints? Our skin produces natural oils. When we touch objects, some of this oil is left behind. It shows up as fingerprints. That’s why we can find fingerprints by “dusting” for them. Try this fingerprint dusting activity on your own or with your friends!
Fact: Even identical twins do not share the same fingerprints!