OpenStax
Open Stax: Anatomy & Physiology: Sensory Perception
Learn the different types of sensory receptors, and describe the structures responsible for the special senses of taste, smell, hearing, balance, and vision.
University of Washington
Taste: Activities, Experiments Models and More
This site has an directions for an exercise called "Tasty activities." Tasty Buds is just the first of many cool activities exploring one of the five senses. The grade levels for the activities vary so keep searching for your best fit.
Other
Monell Chemical Senses Center: Areas of Research: Sensation and Perception
Overview of how chemical signals from animals mark territories, identify individuals, signify social rank, and indicate reproductive and health status.