Description
The Stoichiometry Challenge is a full week of scaffolded, inquiry-based instruction designed to make learning stoichiometry a stimulating and engaging process. Students take on the role of chemical engineers, using engineering design and problem-solving skills to plan, produce, and evaluate a chemical synthesis rather than following a traditional recipe-style lab.
This activity emphasizes engineering thinking, real-life skills, and decision-making as students work through each stage of the process. The challenge is intentionally structured over multiple days to support understanding, build confidence, and keep all students progressing together in mixed-ability high school chemistry classrooms.
This lab works well on its own or as a capstone following stoichiometry practice problems and an introductory ice melt investigation, allowing students to apply core concepts in an authentic, engineering-based context.
Instead of relying on a textbook, students must think, calculate, revise, and reflect as they move from planning to production and analysis.
Students will:
- write and balance their own chemical equations
- use moles and molar mass to calculate reactant quantities
- synthesize and isolate a compound
- calculate theoretical, actual, and percent yield
- analyze sources of loss and process efficiency
- apply stoichiometry to an engineering-style, real-world scenario
What’s Included
- Student Packet (PDF)
Complete student instructions, data tables, and extension activities
- Teacher Guide (PDF)
Implementation notes, suggested pacing, classroom management tips, and assessment guidance
Topics Covered
- Stoichiometry
- Moles and molar mass
- Mole ratios and mass calculations
- Theoretical vs. actual yield
- Percent yield
- Engineering design and problem solving
- Real-world and industrial chemistry connections
Grade Level
High School Chemistry (Grades 9–12)
Time Required
Approximately one full week (flexible)
Why Teachers Like This Resource
- Designed as a complete week-long learning sequence, not a single lab
- Inquiry-based and engineering-focused
- No textbook required
- Classroom-tested in real, mixed-ability settings
- Builds confidence, independence, and problem-solving skills
Stoichiometry Laboratory Challenge –Engineering& Design Inquiry-Based Lab
Highlights
Description
The Stoichiometry Challenge is a full week of scaffolded, inquiry-based instruction designed to make learning stoichiometry a stimulating and engaging process. Students take on the role of chemical engineers, using engineering design and problem-solving skills to plan, produce, and evaluate a chemical synthesis rather than following a traditional recipe-style lab.
This activity emphasizes engineering thinking, real-life skills, and decision-making as students work through each stage of the process. The challenge is intentionally structured over multiple days to support understanding, build confidence, and keep all students progressing together in mixed-ability high school chemistry classrooms.
This lab works well on its own or as a capstone following stoichiometry practice problems and an introductory ice melt investigation, allowing students to apply core concepts in an authentic, engineering-based context.
Instead of relying on a textbook, students must think, calculate, revise, and reflect as they move from planning to production and analysis.
Students will:
- write and balance their own chemical equations
- use moles and molar mass to calculate reactant quantities
- synthesize and isolate a compound
- calculate theoretical, actual, and percent yield
- analyze sources of loss and process efficiency
- apply stoichiometry to an engineering-style, real-world scenario
What’s Included
- Student Packet (PDF)
Complete student instructions, data tables, and extension activities
- Teacher Guide (PDF)
Implementation notes, suggested pacing, classroom management tips, and assessment guidance
Topics Covered
- Stoichiometry
- Moles and molar mass
- Mole ratios and mass calculations
- Theoretical vs. actual yield
- Percent yield
- Engineering design and problem solving
- Real-world and industrial chemistry connections
Grade Level
High School Chemistry (Grades 9–12)
Time Required
Approximately one full week (flexible)
Why Teachers Like This Resource
- Designed as a complete week-long learning sequence, not a single lab
- Inquiry-based and engineering-focused
- No textbook required
- Classroom-tested in real, mixed-ability settings
- Builds confidence, independence, and problem-solving skills
