These online resources investigate the human body's endocrine system.

The resources provides background details and instructions for an activity on the how human body's endocrine system works that uses the mail delivery system as a model.

The first resource contains teacher background information while the second resource provides the step-by-step instructions for the activity which looks at the specificity of the hormone–receptor interactions within the endocrine system.

Australian Curriculum v9 Codes: AC9S9U01 (Year 9)