Students illustrate where germs exist, how they can get into the body and affect the body, and how the body defends itself against them. In lower elementary school students learn about health in a general sense; e.g., that eating a balanced diet and getting exercise and rest helps people stay healthy.

Students illustrate where germs exist, how they can get into the body and affect the body, and how the body defends itself against them. In lower elementary school students learn about health in a general sense; e.g., that eating a balanced diet and getting exercise and rest helps people stay healthy. They start to learn about some "things" that can hurt the body if they get into the body. Separately, they learn that germs cause some diseases. Now, they are ready to expand on this learning. They can explore how germs can get into one's body, and what the consequences could be. Also, students can begin to learn how the body physically protects itself from these germs. (author/kct)