Can a sidewalk increase the amount of pollution in local streams? Scholars learn the answer to this question though research and experimentation in the fifth unit in the six-part series. Pupils study runoff, impervious surfaces, and the...

Students investigate how maps can provide useful information about health issues. They study a map to draw conclusions about cholera death in London.

Learners discover that HIV is a blood-borne virus which attacks to the body's immune system. They see the difference between being infected with HIV and being diagnosed with AIDS. They discuss which behaviors are safe and which are not.