science fair

noun

: a typically competitive exhibition of science projects usually prepared and presented by schoolchildren

Examples of science fair in a Sentence

She won first place at the science fair.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Their science fair projects are quite the challenge, with a volcano that’s lost its fizz and a toy car that can’t take off. — Sarah Scott, Parents, 27 Feb. 2026 Last year's science fair projects was a device to help people with blindness navigate the world. — Libby Smith, CBS News, 1 May 2026 His 8-year-old son — who now has a 4-year-old sister — recently won his way to a state science fair. — Scott Horsley, NPR, 9 Feb. 2026 Anyone who has been witness to the classic science fair project volcano knows that a mix of baking soda and vinegar creates an explosion. — Kait Hanson, Southern Living, 26 Feb. 2026 See All Example Sentences for science fair

Word History

First Known Use

1930, in the meaning defined above

Time Traveler
The first known use of science fair was in 1930

Rhymes for science fair

See All Rhymes for science fair

Browse Nearby Words

scienced
science fair
science fiction
See all Nearby Words

Cite this Entry

“Science fair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/science%20fair. Accessed 7 Jul. 2026.

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Kids Definition

science fair

noun
: an exhibition of science projects typically prepared and presented by schoolchildren
Last Updated: - Updated example sentences
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