Science quizzes

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Scientific method · Grades 5–9 · 5 questions

Can you spot a fair test?

Identify variables, controls and evidence in a simple investigation.

Life science · Grades 6–10 · 5 questions

Use mass change to infer net water movement—and avoid overclaiming the model.

Chemistry · Grades 5–9 · 5 questions

Explain what yeast, oxygen and soap each contribute to elephant toothpaste.