An infant on a farm has blue baby syndrome. As an EPA environmental engineer, students must find the cause of the baby's illness. Using environment data, students learn the importance of the nitrogen cycle and how human factors can impact nature.
STEM Cases are interactive explorations in which students practice problem-solving and critical thinking as they solve a real world problem as a STEM professional. More About STEM Cases
Choose the level that is appropriate for your students.
|High School||This version is for general biology classes||40-50 min|
|AP||This version is for AP level classes||60-80 min|
Handbooks contain the same biology content as the related STEM Case, but without the investigative problem to solve. More About Handbooks
|High School||The Expanded Handbook covers amino acid structure, ammonia dissolving in water (ammonia vs. ammonium), and the need for ATP in the synthesis of ammonia by nitrogenase, in addition to the concepts covered in the handbook section of the High School Case||15-20 min|
|AP||This Handbook is identical to the handbook section in the AP Case||20-25 min|
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