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Chemistry worksheet for high school students planning three tests to identify four unlabeled white powders and evaluating evidence.
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Identifying Unknown White Powders: Scientific Investigation Plan

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This printable chemistry worksheet guides grades 9–12 students through identifying four unlabeled white powders using only three tests. Students select which tests to prioritize, explain their reasoning, identify the strongest evidence, and reflect on what remains uncertain. Useful for lab practicum preparation, scientific method review, evidence-based reasoning practice, or as a formative checkpoint during an investigation unit.

Subject:
Science
Topic:
Chemistry
Grade Level:
9th – 12th Grades
Updated June 2026

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