What Is a Hypothesis?

A hypothesis is a prediction that is tested with an experiment.
A hypothesis is a prediction that is tested with an experiment. Angela Lumsden, Getty Images

Question: What Is a Hypothesis?

Answer: A hypothesis is a proposed explanation for an observation. Observations and experiments may disprove a hypothesis, but can never entirely prove one.

Example of a Hypothesis

  • If you drop a rock and a feather, they will fall at the same rate.
  • Plants need sunlight in order to live.
  • Eating sugar gives you energy.
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Your Citation
Helmenstine, Anne Marie, Ph.D. "What Is a Hypothesis?" ThoughtCo, Mar. 6, 2017, thoughtco.com/what-is-a-hypothesis-609092. Helmenstine, Anne Marie, Ph.D. (2017, March 6). What Is a Hypothesis? Retrieved from https://www.thoughtco.com/what-is-a-hypothesis-609092 Helmenstine, Anne Marie, Ph.D. "What Is a Hypothesis?" ThoughtCo. https://www.thoughtco.com/what-is-a-hypothesis-609092 (accessed February 25, 2018).