Osmosis Claim Evidence Reasoning
aligned to Students Will Use Data To Write A Claim With Evidence
Learning Objective
I can construct a claim about osmosis and support it with evidence from data.
Lesson Flow
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CER (Claim, Evidence, Reasoning) in Biology
Amoeba Sisters
Practice
3 questions β’ Short answer
Exit Ticket
βPotato slices were placed in two different salt solutions, A and B. After 30 minutes, the potato slices in solution A gained mass, while the potato slices in solution B lost mass. State a claim about the direction of water movement in each solution and identify the evidence that supports your claim. A scientist measures the initial and final volumes of cells placed in a sugar solution. The data shows that the cells' volume increased by 15%. Formulate a claim about the concentration of the sugar solution relative to the cells and identify the evidence that supports your claim. β
Teacher Guide
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