Scientific thinking

Hypotheses, variables, experiments and data.

10 exercises · 30 progressive levels, from basic to advanced

1. Hypotheses

   Choose the hypothesis that explains and can be tested.

2. Variables

   Independent, dependent and controlled.

3. Fair test

   Design tests that really prove something.

4. Control group

   Choose the right comparison.

5. Correlation vs cause

   Read scatter plots and think of third factors.

6. Graphs

   Read maximums, minimums, differences, totals and averages.

7. Measurement

   Conversions, measurement errors and averages.

8. Probabilistic thinking

   Gambler’s fallacy, expected value and samples.

9. Diagnosis

   Find the most likely cause of a problem.

10. Scientist mission

    A complete investigation, step by step.