Split your classroom into five groups. You can assign groups and mix stronger students with students who may need more help with science, or you can allow students to choose their own groups. Each group will investigate a specific sense: taste, touch, smell, sight and hearing.
Provide each group with a series of items that will encourage them to explore their assigned sense. For taste, provide an array of food items that will trigger different taste buds. For sound, provide recordings of loud, medium and quiet sounds. You can include both music and everyday sounds, such as traffic noises. For sight, provide activities for students to explore different colors and distances. For touch, provide items that range in texture, such as soft feathers and sandpaper.
Ask students, as a group, to write down their findings from their experiments. They can discuss differences they found, such as differences in taste. You can also ask students to draw pictures of the feelings that different items evoke. This will interest students who excel in writing or art and build connections with their science unit.
After the groups have finished, ask each group to teach the class about their findings. You can also facilitate a discussion by asking students to imagine or act out what life would be like without one of their senses. Ask students to imagine having an extra sense. What would it be, and what would it enable them to do?