20
QuizMultiple Choice

Unit Test — Unit test

Question 20 • GA-GSE Grade 8 Physical Science

Linh is analyzing a solution in a crime lab. He needs to determine what liquid was used to dissolve the other substances. Which method would best complete the task?

Answer
A
evaporation
B
filtration
C
decantation
D
distillation

Explanation

Distillation is best because it separates liquids based on their different boiling points. Heating the solution vaporizes the solvent, which can then be cooled and collected, helping Linh identify the liquid used to dissolve the substances. Evaporation would remove the liquid but would not collect it for analysis.

AI-written and checked against the verified answer.

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