A scientist might work in a laboratory, out in nature, at a special office, as a professor, as a writer or journalist, and more! To answer puzzling questions, scientists might do everything from performing tests and collecting surveys to brainstorming and daydreaming! Scientists use all kinds of different tools for their jobs: Computers, telescopes, microscopes, rulers, thermometers, barometers, scales, beakers and test tubes, and much more!
The bacteria that causes the bubonic plague is called Yersinia pestis. This bacteria also causes the other two forms of plague: septicemic plague and pneumonic plague (see Types of Plague).
Types of Plague. The swellings, called buboes, were the victim's lymph nodes, and they gave the Bubonic Plague its name. But the bubonic form of the disease was only one manifestation of the horrible pandemic that swept Europe in the 1340s. Another form was Pneumonic Plague.