What do your vital signs tell your doctor? An engaging hands-on lesson has your learners monitor their own lung capacity, blood pressure, and heart rate. They then connect the vital measures to the workings of the circulatory and...

Learners explore the relationship between pressure and vessel diameter. They are given an open-ended design challenge in which they engineer their own remote repair device. Students see a model that represents how elevated blood...

Here is a lesson which describes a lab activity in which a rat is dissected, and its heart is studied. The lesson has ample background information about three of the rats internal systems, and excellent lab sheets that support the...

Tenth graders discuss marine mammal diving reflex, and measure pulse rate while holding their breath under three conditions: control, warm water, and ice water to determine if humans exhibit marine mammal diving reflex.