Become a science sleuth as you practice the science of fingerprint detection and collection. Collect fingerprints by dusting them with black powder and lifting them with clear stickers. Design a fingerprint file card and take prints from your friends and family. Learn how the FBI classifies fingerprints. Once you have mastered fingerprinting, put your skills to the test by playing a detective game to find and match prints. Learn why our fingers leave prints and why they are such solid evidence in criminal investigations.