High Sensitivity Touching Contest What we use for touching is our skin. Every bit of skin all over our bodies, including our nails, is used for touching. Some sections of the skin are more sensitive than others. To demonstrate this take an object with an irregular surface (a Ping-Pong paddle works well) and touch it to the elbow, the knee, ...anywhere but the hand, and try to identify the surface characteristics. Finally touch the paddle to the fingertips. Which way was easier? The fingertips should have won hands down in the high sensitivity touching contest! Mystery Surfaces Make your own surfaces by coating index cards with glue, then spreading on separate cards items such as popcorn, sugar, flour, seeds, sand, paper, soil, etc. Put each card in a separate bag and have each student reach into each bag and identify each surface. Younger students can be helped by having a duplicate reference set of cards available to compare, older students are on their own!