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In this activity, learners act as epidemiologists by mapping the prevalence of HIV/AIDS worldwide.

This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

In this activity, learners explore surgical instrument design. Teams of learners construct surgical instruments from everyday materials.

This activity (page 2) draws upon a familiar, computer-based concept related to visual resolution: pixilation.

In this activity, learners examine antibodies and antibody recognition using a model.

In this activity (page 12), learners apply the concepts of pixilation and pointillism to the world of biomedical science.

This exercise is designed to teach young learners the different parts of a plant (root, stems, leaves, flowers, fruit, and seeds), the basic functions of each part, and to show that tiny microscopic o