Students examine the role of the immune system in the human body. They conduct a hand-washing experiment, answer questions while viewing videos, discuss key vocabulary, draw and label illustrations, and observe demonstrations and record...

Students explore the hidden world of microbes and how our bodies spring into action in response to diseases. This ten lesson unit presents data on several microbial diseases and the reaction of the body's immune system.

Students research the immigration of America. In this American immigration lesson, students complete a unit of activities to learn about American immigration.

Bacterial conjugation and experiments with viruses indicated that they must also contain DNA. This multimedia article includes animations, pictures, video, biographical information, and quiz questions that are accessed by clicking on...

[Free Registration/Login may be required to access all resource tools.] We have all heard of viruses. The flu, the common cold, and many other diseases are caused by viruses. But what is a virus? Do you think viruses are living? Which...

There are battles that are fought each day on the planet. The invading forces are those of viruses and bacteria. Left alone they would take over and destroy every cell! It is up to some key defense systems to battle and destroy these...

An interactive, self-guided lesson on pathogens and microorganisms. This lesson has many descriptive animations as well as diagrams to help with understanding. There is a self-checking quiz at the end of the lesson.

A self-paced lesson on infectious diseases including bacterial, fungal, viral, and parasitic infections. Each disease featured discusses symptoms and treatment.

If you've ever wondered how your immune system works, this movie and activity guide is for you! [7:26]

A discussion about the globalization of disease, and the implications of a pandemic. Mark Honigsbaum describes the history of pandemics and how scientists can help prevent future outbreaks. [8:00]

Germs are found on almost every surface we come in contact with, which makes it incredibly common for our bodies to be exposed to them. But why are some of these germs relatively harmless, while others can be fatal? The creators of this...

[Free Registration/Login may be required to access all resource tools.] In the following tutorial you will learn about the barriers that keep most pathogens out of the human body.