University of Maryland Extension

National Youth Science Day Experiments

4-H National Youth Science Experiment

4-H National Youth Science Day is the premier national rallying event for year-round 4-H Science programming, bringing together youth, volunteers and educators from the nation’s 109 land-grant colleges and universities to simultaneously complete the National Science Experiment.

Launched in 2008 with Helpful Hydrogels, the 4-H Experiment Archive grows each year with a new challenge geared to engage youth ages 8-18 in scientific experiments to highlight S.T.E.M. education. From building bristle bots to clean up an environmental spill to investigating how to harness the wind, there is something to fit all classrooms and curriculums.

Research from the Tufts Institute on Positive Youth Development shows that youth who participate in 4-H are more likely to pursue careers in science, engineering, technology or math. 

By being a part of these experiments, you can help Make the Best Better!

Click on each logo to explore the National 4-H Science Challenges...

Go to National Youth Science Day 2019 for this year's challenge.

For more information contact: Mark DeMorra at or Jamie Kenton at or Jim Serfass at        

4-H Science Day Experiments

  Click here for Maps & Apps experimentsClick here for Ecobot experimentsClick here for Wired for Wind experimentsClick here for 4-H2O experimentsClick here for Biofuel experimentsClick here for Hydrogels experiments

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