the microscope was constructed and set up. Users learned how to create and view slides of their own cheek cells, as well as leaf peels from a variety of different plants; to observe stomata ...

This year’s first-place winner was Jason Kirk, who used a custom-made microscope to turn the biology ... “In purple, Jason highlights the stomata, small pores that regulate the flow of gases ...

The tiny pits visible on the surface are stomata, or breathing pores. Photo Credits: Wolfgang Stuppy, Rob Kesseler & Madeline Harley/Papadakis Publisher Microscopic detail of the surface of a peach.