You will work in groups of five. I will assign each group a sense. Each group will research on how the assigned sense works, give an example and explain. After which, each group will answer some questions about your group sense and present your findings to the class.
For Sight: Why some people having farsightedness and nearsightedness?
For Hear: What are the causes for someone who is having a hard time in hearing?
For taste: How does the tongue recognized different tastes?
For touch: How does your hand tell the difference between hot and cold surfaces?
For smell: Give some proofs about the relation between the sense of smell and taste.