Grade 11 · Week 13 · U3
Essential question: How can chemists separate and identify components of mixtures?
A colored mixture separates into distinct bands or signals.
Build an initial model and explanation for: How can chemists separate and identify components of mixtures?
Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: mixture; chromatography; spectrum; calibration; retention.
Study and explain the week's core ideas: mixture; chromatography; spectrum; calibration; retention
Trusted chromatography/spectroscopy examples.
Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.
Rf-style ratios or calibration-curve interpretation.
Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: How can chemists separate and identify components of mixtures?
Paper chromatography with washable ink/water or virtual spectroscopy.
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 can chemists separate and identify components of mixtures?
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.