This is a site full of information about various microscopes and the objects and processes scientists study with them. Includes timelines and interactive simulations.

View a video or a click-through a slideshow to find out how the SEM works. In addition, find an interesting gallery of magnified images captured with an SEM, links to related sites, and a teacher resource section.

A program will help students determine differences and similarities of the structure and function of compound light microscopes, dissecting microscopes, scanning electron microscopes and transmitting electron microscopes.

Use a virtual scanning tunneling microscope (STM) to observe electron behavior in an atomic-scale world. Walk through the principles of this technology step-by-step.

A learning module that investigates a powerful tool to observe and manipulate atoms called the scanning tunneling microscope.