Keeping a Balance: Homeostasis & Negative Feedback

Catalog #STO-121

Learn how negative feedback mechanisms maintain homeostasis.

Time To Complete Time to complete: Three 40-minute class periods

How are negative feedback mechanisms used to maintain homeostasis?

  • Do a hands-on simulation to show how "Cupples" maintain homeostasis.
  • Use a graphic organizer to illustrate feedback control mechanisms for regulating body temperature.
  • Learn how blood glucose concentration is regulated.
Teacher Guide Know Before You Buy! Download Teacher Guide

Limit 1 free sample per customer

Quantity Price
1 - 9$11.55 ea.
10 - 24$10.97 ea.
25 - 1000$10.40 ea.

Each assembled kit contains:

  • 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”

Also required: Scissors, safety goggles

Buy Unassembled and Save!

Refill Your Kit

Keeping a Balance: Homeostasis and Negative Feedback – Pack of 10 Unassembled Kits

Catalog # STO-121U

Unassembled packs contain materials for 10 kits.

  • All supplies, lab materials, and printed labels
  • Student instructions copy master
  • Easy to follow instructions for kit assembly
Quantity Price
1 - 9$78.75 ea.
10 - 1000$74.81 ea.

Keeping a Balance: Homeostasis and Negative Feedback – 10 Kit Refill Pack

Catalog # STO-121R

Refill packs contain materials to replace consumable supplies for 10 kits.

Quantity Price
1 - 9$28.35 ea.
10 - 1000$26.93 ea.

Teacher Testimonial

The kits were easy to use, useful, and also implemented common core standards.

- High school biology teacher (FL)

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STO-121