• Arkansas 4-H Archeology Project Portfolio (All Ages)
• Society for American Archeology Lessons
• Arkansas Archeological Survey Lessons
• Discover 4-H Geology Clubs
• Digging 4-H Archeology and Youth

National 4-H Project Books:

• 4-H Geology: Introduction to the Study of the Earth ($$$, All Ages)

• Discover 4-H Crime & Spy Science Clubs
• Smithsonian: Chemical Reactions in Action
• Explore the Scientific Method-Lifecycles

• Discover Forces of Nature Clubs
• Discover 4-H Incident Command Clubs

National 4-H Project Books:

• Weather and Climate Science Curriculum ($$$, All Ages) 

• Smithsonian: Which Force is With You? A Motion and Design Lesson
• Discover 4-H Exploring Energy Clubs
• Discover 4-H Planet Energy Clubs

National 4-H Project Books:

• Renewable Energy Curriculum ($$$, All Ages)
• Electronics Curriculum ($$$, All Ages)

• What's That Bug? Blog
• Discover 4-H Entomology Clubs
• Explore Beginning Beekeeping
• Smithsonian's Expedition: Insects

National 4-H Project Books:

• Entomology and Beekeeping Curriculum ($$$, All Ages)

• Discover 4-H Environmental Education and Citizenship Clubs
• Discover 4-H Cloverbud Environmental Earth Science
• Smithsonian Futures! Curriculum 

National 4-H Project Books:

• Sustainable Polymers Curriculum Series ($$$, Grades K-8)
  Be a Scientist! Materials in a Green, Clean, World  |Plastics of the Future for a Green, Clean World  |Taking Action to Solve the Challenge of Plastics
• Exploring Your Environment Curriculum Series ($$$, Grades 6-8) 
  Ecosystem Services  | Earth's Capacity  | Facilitator Guide
• Soil to Seed ($$$, Grades 9-12)
• Exploring Polar Science ($$$) 

Coming soon!

• UADA Forestry Website
• Community Forests: An Introduction to Urban Forestry
• Trees and Air Quality Activity

National 4-H Project Books:

• Forestry Curriculum Level 1: Follow the Path ($$$, Grades 3-5)
• Forestry Curriculum Level 2:  Reach for the Canopy ($$$, Grades 6-8)
• Forestry Curriculum Level 3: Explore the Deep Woods ($$$, Grades 9-12)
• Forestry Helper's Guide ($$$) 

• UADA Wildlife Website Page
• Discover 4-H Wildlife Clubs
• Water or Land? Activity
• Arkansas Wildlife Magazine
• Arkansas Fish Pocket Guide
• "Deer Talk" Activity
• Discover 4-H Wonders of Water Club
• Explore Water
• Investigating Water
• AGFC Guidebooks

National 4-H Project Books:

• Sportfishing Curriculum Series ($$$, All Ages)
  Take the Bait: Level 1, | Reel In the Fun: Level 2, | Cast into the Future: Level 3  | Fishing Curriculum Helper's Guide
• Wildlife Curriculum Series ($$$, All Ages)
  Wildlife Science: Level 1  | Wildlife Science: Level 2  | Wildlife Science: Level 3  | Wildlife Science: Facilitator's Guide
• Rain to Drain: Slow the Flow ($$$, Middle but adaptable for any age)
• There's No New Water! ($$$)
• H2O OK Plus Complete Water Analysis Kit ($$$)

Discover 4-H Lessons:

• Code Clubs (Beginners, Grades K-8)
•  Scratch Code Clubs (Intermediate Coders, Age 9-14)
• Python Code Clubs (Grades 9-12)
•  Art of Math Clubs

National 4-H Project Books:

• Programming and Computer Science Curriculum ($$$, All Ages)

• Discover 4-H Engineering an Empire Clubs
• Discover 4-H 3D Modeling Derby Car-Onshape Clubs
• Engineering  Snack Time Activity and Lesson
• Red Cup Challenge

National 4-H Project Books:

• Engines, Motors, and Machines Curriculum ($$$, All Ages)

Discover 4-H Lessons:

•  Robotics Clubs
•  Makey Makey Clubs
•  Lego EV3 Robotics

National 4-H Project Books:

• Robotics Curriculum ($$$, All Ages)

• STEM: The Solar System Lesson
• Science of the Sun Resources
• Egg Drop with a Twist Lesson (physics focused)
• Smithsonian: Women in Aviation and Space History
• NASA Educator Lessons
• NASA Kid's Club
• NASA STEM Resources
• NASA Jet Propulsion Lab

Discover 4-H Lessons:

• 3-D Printing Tinkercad Clubs
•  Aerodynamics and Model Airplane Clubs
•  Flight Clubs
•  Mission to Mars Clubs
•  Astronomy Clubs
•  Dark Sky Clubs

National 4-H Project Books:

• Aviation and Space Exploration Curriculum ($$$, All Ages)