Your favorite childhood chewing gum says a lot about you, but in adulthood, cartoony packaging and huge bubbles are less of a priority than taste, texture, its ability to keep breath from smelling like pizza, and most importantly, how long the flavor lasts. read more
Write down your guess, also called a hypothesis, in your notebook. Time how long each volunteer chews the gum until it loses its flavor. Record all the times until every volunteer has finished their gum. read more