Virginia SOL LS.1.d

ScienceGrades 7–8Life Science

SOL Standard (Key Ideas Cluster)

constructing and critiquing conclusions and explanations

Virginia Standards of Learning for Science · The student will demonstrate an understanding of scientific and engineering practices by

Cluster contents

Key Ideas in This Standard

LS.1.d is a Standards of Learning science standard. These are the key ideas and practices under it.

Teacher's field guide

What This Cluster Means

What Students Need to Do

Students explain how one variable affects another using observations, measurements, graphs, or data tables. They support explanations with reliable evidence from investigations and other sources. They critique conclusions and distinguish a testable hypothesis from a well-supported scientific theory.

What Mastery Looks Like

Students identify a relationship between variables, cite specific evidence, and explain how the evidence supports a conclusion. They spot claims that exceed the data or rely on weak sources. They know a theory is not simply a guess or a proven hypothesis.

Common Misconceptions

Students often treat a theory as an unsupported guess and think hypotheses become theories after enough testing. They may assume correlation proves causation or choose only data that support their claim. Some repeat results without explaining the relationship between variables.

How to Assess It

Exit ticket: Plants receiving eight hours of light averaged 14 cm, while plants receiving four hours averaged 9 cm across three trials. Explain the relationship, critique the claim “light always determines growth,” name one reliability check, and classify the claim as a hypothesis or theory.

Lesson moves

Ways to Teach It

  1. Grow seedlings under two light conditions, measure height for one week, and write an evidence-based explanation of the results.

  2. Discuss why the germ theory of disease is not a guess, then write two sentences distinguishing theories from hypotheses.

  3. Play a card sort matching claims, evidence, variable relationships, hypotheses, and theories, then defend disputed matches.

  4. Compare two health product advertisements, check their evidence sources, and identify which conclusions are supported by the reported data.

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Related Standards

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