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Description
Product Highlights
- Observe a dynamic equilibrium and Le Châtelier’s principle in action.
- High school modeling activity with manipulatives and enough materials for 10 lab groups.
- Carolina Kits 3D®—Labs that use phenomena to support NGSS and 3-dimensional instruction.
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)
HS-PS1-5
HS-PS1-6
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.