We use cookies to provide you with a great user experience. By using our site, you accept our use of cookies. You can review our cookie and privacy policy here.
  • Service & Support

    Contact Us

    Our Customer Service team is available from 8am to 6:00pm, ET, Monday through Friday. Live chat is available from 8am to 5:30pm ET, Monday-Friday.

    Email Customer Service

    International Sales & Service

    We serve educators in more than 170 countries worldwide. Create a quote request on our website or contact our International Sales Team.

    International Ordering
  • Shopping

    Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more.

  • Quick
  • My Cart

    My Cart

    Your Shopping Cart is currently empty. Use Quick Order or Search to quickly add items to your order!

Chemical Equilibrium and Le Châtelier’s Principle Kit

(in stock)


A skier’s light-headedness at altitude serves as the phenomenon underlying this lab. The human body is a complex equilibrium system that is constantly changing and constantly working to establish and maintain stability. Students will conduct a series of 3 investigations in which they evaluate a chemical system, make modifications to an established equilibrium, and then utilize what they have learned by applying it to the human body to answer the driving question, “What variables affect a chemical reaction system and how does the system respond when something changes?”

Time Requirement
Total, 190 minutes. Teacher prep, 50 minutes. Pre-lab, 20 minutes. Investigations (3), 120 minutes.

Digital Resources
Includes 1-year access to digital resources that support 3-dimensional instruction for NGSS. Digital resources may include a teacher manual and student guide, pre-lab activities and setup videos, phenomenon videos, simulations, and post-lab analysis and assessments.

Performance Expectation(s)

Crosscutting Concepts
Stability and Change

Disciplinary Core Ideas
PS1.B: Chemical Reactions

Science and Engineering Practices
Constructing Explanations and Designing Solutions

Learning Objectives

  • Create a stable chemical system and observe how the stability of a chemical system changes as a stressor is manipulated.
  • Construct explanations through student-generated sources of evidence to justify that all chemical reactions are in a dynamic equilibrium and can be altered by various conditions.

Prerequisite Knowledge and Skills
Students should be able to write and balance chemical equations; understand, read, and write chemical dissociation equations; and have a general understanding of acids, bases, pH, and chemical kinetics.


What’s Included:
Needed But Not Included:
Return Policy:

If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.


Questions & Answers