Hypothesis

Definition

A hypothesis is a testable and falsifiable statement that explains a phenomenon or predicts an outcome. It serves as the basis for scientific experiments and observations.

5 Must Know Facts For Your Next Test

1. A hypothesis must be specific and measurable to be scientifically valid.
2. It often follows an 'if-then' format, proposing a potential cause-and-effect relationship.
3. Hypotheses can be either supported or refuted through experimentation and observation.
4. A well-formed hypothesis is grounded in existing knowledge and previous research.
5. The process of forming a hypothesis involves critical thinking and logical reasoning.

Review Questions

• What are the key characteristics that make a hypothesis scientifically valid?
• How does a hypothesis differ from a theory?
• Why is it important for a hypothesis to be testable and falsifiable?

Related terms

Theory:

A well-substantiated explanation of some aspect of the natural world, based on a body of evidence.

Experiment: A procedure carried out to support, refute, or validate a hypothesis.

Observation: The act of noting and recording phenomena as they occur in nature.