Ask a friend to sit in front of you with his/her eyes closed. Tell your friend that you are going to put something on his/her skin and that he/she is to tell you what it is. Place a drop of warm water then a drop of cold water on the back of your friend’s hand. Ask him/her what it is. Pinch him/her a little bit. Ask him/her what he/she felt. Dab a piece of cotton on your friend’s hand. How did he/she respond? What did you learn about the skin from this activity?​