How much do you know about anatomy? Cardiology? Have you ever set foot in a scientific lab? Once you visit BioInteractive’s virtual lab, you’ll feel as if you have.

The website is offered by the Howard Hughes Medical Institute, a nonprofit organization that funds biomedical research. It features free virtual labs for anatomy, bacterial identification, immunology, neurophysiology and cardiology.

The concept is simple: You tool around virtual, web-based spaces as if you were a scientist. And you learn in the process. It’s designed to help users practice the skills and techniques of scientific research.