Standards Tools help scientists make better observations, measurements, and equipment for investigation. They help scientist see, measure, and do things that they could not otherwise see, measure and do. Employ simple equipment and tools togather data and extend the senses. Top Scientists look for patterns in what they observe. They develop hypotheses as possible explanations for the way things are.
Most fingertips have patterns of ridges separated by valleys.
In the valleys, there are small holes. Each of these holes is a small pore through which sweat or moisture oozes from the gland within. The ridge pattern is the fingerprint and is slightly different from any other fingerprint in the world. See the Fingerprinting fact sheet for further information. Top Prepare a three-column class graph labeled Loop , Arch , and Whorl .