In the first part of the activity, each student chews a piece of gum until it loses its sweetness, and then leaves the gum to dry for several days before weighing it to determine the amount of mass lost. This mass corresponds to the amount of sugar in the gum, and can be compared to the amount stated on the package label. In the second part of the activity, students work in groups to design and conduct new experiments based on questions of their own choosing. These questions arise naturally from observations during the first experiment, and from students' own experiences with and knowledge of the many varieties of chewing and bubble gums available.

Psychology is designed to meet scope and sequence requirements for the single-semester introduction to psychology course. The book offers a comprehensive treatment of core concepts, grounded in both classic studies and current and emerging research. The text also includes coverage of the DSM-5 in examinations of psychological disorders. Psychology incorporates discussions that reflect the diversity within the discipline, as well as the diversity of cultures and communities across the globe.Senior Contributing AuthorsRose M. Spielman, Formerly of Quinnipiac UniversityContributing AuthorsKathryn Dumper, Bainbridge State CollegeWilliam Jenkins, Mercer UniversityArlene Lacombe, Saint Joseph's UniversityMarilyn Lovett, Livingstone CollegeMarion Perlmutter, University of Michigan

Students design and create sensory integration toys for young children with developmental disabilities an engineering challenge that combines the topics of biomedical engineering, engineering design and human senses. Students learn the steps of the engineering design process (EDP) and how to use it for problem solving. After learning about the human sensory system, student teams apply the EDP to their sensory toy projects. They design and make plans within given project constraints, choose materials, fabricate prototypes, evaluate the prototypes, and give and receive peer feedback. Students experience the entire design-build-test-redesign process and conclude with a class presentation in which they summarize their experiences with the EDP steps and their sensory toy project development.

The video resource "Taste & Smell: Crash Course A&P #16" is included in the "Anatomy & Physiology " course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.