- Student instructions
- Negative Feedback Graphic Organizer cards
- 1 tube of “Cupple Blood”
- 1 tube of “Sugar ”
- 1 tube of “Exercise”
- 2 labeled droppers
- 1 small cup labeled “Cupple”
How are negative feedback mechanisms used to maintain homeostasis?
HS-LS1-3. Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.
Developing and Using Models - Use a model based on evidence to illustrate the relationships between systems or between components of a system.
LS1.A: Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system.
Stability and Change - Feedback (negative or positive) can stabilize or destabilize a system.