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In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

In this activity, learners will use their nose to sniff out hidden scents using extracts and cotton balls. Activity includes materials list, game instructions, STEM connections and more.

In this activity, learners control the (apparent) size of a hole with their brain.

In this activity about olfaction (8th activity on the page), learners smell 10 different items with different odors. Then they try to identify the smells when they are mixed together.

In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

In this activity (4th activity on the page), learners use their sense of smell to rate and arrange containers filled with different dilutions of a scent (like cologne or fruit juice) in order from wea

In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.

In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.

In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

In this demonstration, learners investigate mass, gravity, and acceleration by dropping a wooden bar with a balloon attached to its underside, a mass suspended from it by rubber bands, and a sharp-poi