Grade 11 · Week 14 · U4
Essential question: How do we represent chemical change while conserving atoms?
Five complete daily lessons, teacher notes, a seven-round balancing game, a safe offline conservation laboratory and open-book mastery practice. Your existing daily evidence journal continues below without replacement.
Mass appears to change in an open reaction but is conserved in a closed-system model.
Build an initial model and explanation for: How do we represent chemical change while conserving atoms?
Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: reactant; product; coefficient; state symbol; conservation.
Study and explain the week's core ideas: reactant; product; coefficient; state symbol; conservation
Open text on equations and conservation.
Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.
Balance equations and perform atom audits.
Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: How do we represent chemical change while conserving atoms?
Closed-system simulation or safe effervescent tablet dataset; no sealed pressure build-up.
Use the course safety charter. If supervision, facilities, materials, or conditions are not appropriate, use the supplied-data/simulation alternative rather than improvising hazardous procedures.
Record variables or design constraints, procedure/model, observations/data, and one revision you would make after reviewing the evidence.
Answer the essential question: How do we represent chemical change while conserving atoms?
Submit a claim, at least two specific pieces of evidence, reasoning that connects them, one limitation/counterclaim, and a correction note for any essential concept below 80%.
Select one artifact from this week and explain why it is trustworthy evidence of growth.