Science reduces error.

Understand how scientific knowledge develops through testing, criticism, replication, and revision.

In this module

1. 2.1Turn a claim into a testable hypothesis.
2. 2.2Identify evidence that could disprove a claim.
3. 2.3Compare observation with experimentation.
4. 2.4Explain why replication matters.
5. 2.5Recognize why scientific conclusions change.
6. 2.6Identify variables in an experiment.
7. 2.7Look for alternative explanations.
8. 2.8Distinguish hypothesis from theory.
9. 2.9Evaluate one study in context.
10. 2.10Follow the evidence instead of the outcome.

Begin module 2