Set up several paper bags with a different food in each one. Blindfold the children, and have them use any of their senses except sight to determine what each of the foods is. Ask them how their sense of sight benefits them throughout the day.
Children can learn about sound vibrations by talking into a rice pipe. Make a rice pipe for each student, using a curved piece of PVC pipe. Cut out a piece of balloon, and secure it over one end of the pipe with a rubber band. Give each student a pipe, and assist them in putting a few grains of rice into their pipes. When students talk into the pipes, the rice will jump up and touch the rubber. The faster and louder they talk, the more the rice will jump against the rubber. Seeing the rice move can help them understand how sound waves work.
Students can explore their sense of touch in the kitchen as well. Cook a large vat of spaghetti and allow students to rub their hands through it to feel the stringy texture. Doing this with their eyes closed will make it easier for them to concentrate on their sense of touch.
Prepare samples of several basic flavors, such as sweet, salty, minty, etc. Blindfold the children and have them taste the different flavors, describe them and try to figure out what foods they are eating.
Put drops of flavored extracts in a series of small bottles or jars. Use aromas the children will be familiar with, such as orange and mint. Have students smell the containers and try to guess what they are smelling. The children do not need to be blindfolded for this exercise because there will be no visual clues present.