September 19-21, 2025

STEM Adventure Weekend is an overnight Friday through Sunday event at Lost Pines Scout Reservation each September where members of Scouts BSA and older youth programs (Venturing, Sea Scouting, Exploring) may work on STEM merit badges, earn COSMIC awards, and enjoy other STEM activities.

Youth may attend STEM Adventure Weekend with their units or with their Scouting America-registered parent/guardian. No lone scouts. Out-of-council units are very welcome to attend. Please reach out to CAC Staff with any questions.

Scouts may choose from more than 20 different classes. See the current STEM Adventure Weekend Guidebook for the most recent classes offerings. Merit badges that have been offered at previous STEM Adventure 

Weekend events include:

Merit badges

• Archery
• Automotive Maintenance
• Astronomy
• Aviation
• Chemistry
• Chess
• Composite Materials
• COSMIC Biochemistry
• COSMIC Computer Hardware
• COSMIC Eclipses
• Digital Technology
• Drafting
• Electronics
• Engineering
• Environmental Science
• Farm Mechanics
• Fingerprinting
• Geocaching
• Model Design and Building
• Nuclear Science
• Plant Science
• Plumbing
• Programming
• Radio
• Rifle Shooting
• Robotics
• Shotgun Shooting
• Signs, Signals, Codes
• Space Exploration
• Weather
• Welding
• Veterinary Medicine

See the STEM Adventure Weekend Guidebook for the weekend schedule, specific class requirements, and much more information about the weekend event.