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In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

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

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 (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.