This activity, from Hagerstown Community College, uses snail eggs to teach anatomy and development to students of varying education levels. Elementary students examine snail eggs in varying stages of development using hand lenses, dissecting microscopes, and compound microscopes and discuss basic anatomy. Middle and high school students also use lenses and microscopes to examine snail development, but go into deeper detail in discussing anatomy and physiology, including conducting some experiments on the specimens. The activity includes directions and a handout.