Provide a mystery hair and a set of reference hair samples for middle school investigators to place on a slide and examine under a microscope. Materials and procedures are detailed on the first page, while a data table for drawing what...

Learners participate in a lab experiment to observe and measure the opening and closing of stomata. They focus on photoperiod, locate and identify stomata on a leaf and explain the role of stomata in the daily functioning of a plant.

Follow this interactive to identify the differences between bacteria and viruses. Look through the lens of a microscope to observe how each functions and impacts humans.

Find out about the work done by the medical laboratory technician. It involves examining both body fluids and cells under the microscope or with specialized computer equipment, analyzing the results, and forwarding that information on to...