Clean Water. Bright Future.

On October 6, 2010, millions of young people across the nation will become scientists during the third annual 4-H National Youth Science Day. In this year's experiment, 4-H2O, youth will learn about carbon dioxide and discover how we as a nation can reduce our environmental impact.

2009 Results
2010 Experiment

National Youth Science Day News and Updates

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Event Map

Is your event on the 2010 National Youth Science Day map?
We want to know the details of your community 4-H National Youth Science Day event! To promote your efforts locally and nationally, send us the details of your event, including date, location, time, etc. and we will include it on the national NYSD event map (powered by Google). Details can be emailed to 4hnysd@4-H.org.
View the 2010 Event Map >>

Watch the How-To Video
Sponsored by Toyota, this year's animated video guide demonstrates how to lead and participate in the 2010 National Science Experiment, 4-H20.
Watch the Video >>
Download the Video >>

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How-To Video

Order Your Experiment Kits
The 2010 National Science Experiment kit is now available for purchase at the 4-H Mall. Each kit includes all the items needed to complete parts 1 and 2 of the experiment, with enough materials for 15 participants. The kit also includes one facilitator guide and five youth workbooks. Additional workbooks can also be ordered on the 4-H Mall.
Purchase the 2010 National Science Experiment Kit >>

Univ of Wisconsin NCAT logo

The 2010 Experiment was designed in conjunction with
North Carolina A&T State University and North Carolina Cooperative Extension Program.

Have a question about 4-H National Youth Science Day? Email us here!

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Did You Know?

  • Less than 1% of all water on Earth can be used by people. The rest is salt water (the kind you find in the ocean) or is permanently frozen.


    -US Environmental Protection Agency

  • Ice is the world's largest supply of fresh water. It covers the remaining 3% of Earth's surface including most of Antarctica and Greenland. Because ice is highly reflective and because of its insulating properties, ice place an important role in regulating climate.


    -US Environmental Protection Agency

  • Planting trees is an easy way to reduce greenhouse gases like CO2. Trees absorb carbon dioxide from the air.


    -US Environmental Protection Agency

  • America is the largest contributor to global warming - releasing a quarter of the world's carbon dioxide - a major factor in global warming.


  • An easy green step: Taking a bath or shower uses 15-30 gallons of water. Shortening your shower by a few minutes can help conserve the amount of clean water used.