New activity kits are now available! Explore the exciting world of renewable energy with the Power Protectors. Home ARCHIVE – STEM Challenge (TEMP)

The 2023 4-H STEM Challenge, Power Protectors kits are now available!

Inspire the next generation of scientists, engineers, and innovators!

Developed by 4-H educators from Cornell University, University of Illinois, Utah State University and West Virginia University, Power Protectors is a collection of three activities that teach kids how to address real-world issues and explore careers in energy. The STEM Challenge kit is perfect for youth ages 8-14.

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Buy your kits on Shop 4-H!

STEM Challenge - River

The Power Protectors STEM Challenge kit includes three activities that are highly adaptable for afterschool programs, 4-H clubs, classrooms, home use and more:

  • Superhero Hideout -Kids will learn about renewable energy and design an electrifying Power Protector hideout!
  • Amped Up Engineering – Acting as engineers, kids will design and build a model of a renewable energy source to help Energy Island survive and thrive!
  • Energy Island Adventure – Playing this collaborative board game, kids work as a SUPER team using solar, wind and hydropower to save endangered Energy Island!

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Power Protectors

Through decades of neglect and waste, Energy Island is in danger of becoming unplugged forever. Now, it’s in the hands of the next generation – The Power Protectors – to save it!

Working together as a SUPER team toward a common goal, young people will help endangered Energy Island move from its unsustainable carbon-based energy use to renewable solar, wind and hydro power.

By completing three engaging activities and using cooperation, determination and the POWER of reusable energy, youth will PLAY and WIN together as The Power Protectors!

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STEM Challenge webinar for educators

Learn about the challenge kit, the specific kit activities and how you can use the challenge to enhance your STEM programming.

Watch the Webinar

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Past Challenges

Since 2008, 4‑H STEM Challenge, formerly known as 4‑H National Youth Science Day (NYSD), has been the premier national rallying event for year-round 4‑H science programming, bringing together youth, volunteers and educators from all over the country to complete hands-on STEM activities.


2022: Explorers of the Deep 

Designed by Rutgers University, Explorers of the Deep focuses on the mysteries and adventures of ocean exploration-with robots! Young people learn how to use Science, Technology, Engineering and Math (STEM) to explore Earth’s Ocean and how it relates to all life on the planet.



2021: Galactic Quest

Designed by Clemson University, the 2021 4‑H STEM Challenge, Galactic Quest, focuses on important STEM topics ranging from physics and engineering to computer science and space agriculture. Galactic Quest explores the history of humans in space, the technology and resources needed for missions and the obstacles humans encounter in orbit.



2020: Mars Base Camp

The 2020 4‑H STEM Challenge will explore sending a mission to Mars with the activity, Mars Base Camp. Developed by Google and Virginia Cooperative Extension, Mars Base Camp is a collection of activities that teaches young people ages 8-14 STEM skills like mechanical engineering, physics, computer science and agriculture.