Welcome to our library of classroom-ready mini-units, exclusively developed by university students at the intersection of STEM and Agricultural Sciences. These resources translate complex research into engaging, inquiry-based lessons designed to foster critical thinking and scientific reasoning in K-12 students. Each unit leverages the authentic contexts of Agriculture, Food, and Natural Resources (AFNR) to teach core concepts in biology, chemistry, engineering, and environmental science, providing educators with the tools to inspire and empower future innovators. These resources are organized by scientific theme and include comprehensive lesson plans, student worksheets, and assessments.
Natural Resources & Environmental Science: Investigate the health of local ecosystems through studies of water quality, soil properties, and wildlife conservation.
Food Science & Engineering: Engage students in the chemistry and technology behind the global food supply, from apple preservation and dairy safety to the economics of coffee.
Plant, Soil & Ecosystems: Explore the "plumbing" of plant physiology, the mechanics of urban gardening, and the flow of energy through complex biological food webs.
Animal & Life Sciences: Discover the world of aquatic biology and entomology through units focused on responsible aquarium care and integrated pest management.
Global Systems & Sustainability: Challenge students to solve 21st-century problems using biomimicry, engineering design for the water crisis, and climate-resilient agricultural models.
These mini-units are open-access resources intended for use by K-12 educators, 4-H leaders, and informal instructors. We encourage you to download, adapt, and implement these materials in your own learning environments to support integrated STEM education.
At BoilerSTEAM, we strive to make our educational materials available to all learners and educators. Please note that for resources developed between 2020 and 2024, ADA accessibility standards were not a formal requirement for student-authored formatting. We recognize that this may create barriers for users with disabilities who rely on assistive technologies. While we have chosen to keep these legacy materials available due to their high educational value, we are committed to doing better. Moving forward, all new resources published as of 2025 are required to meet strict ADA accessibility guidelines. We are currently in the process of reviewing our archives to update and remediate older files where possible.
Author: Connor Adamek (2024)
Target Age Level: Middle to High School
Description: Students act as ecologists to explore animal adaptations and evaluate the effectiveness of conservation practices.
Author: Mariah K. Stollar Awan (2023)
Target Age Level: High School
Description: This series covers soil properties, pH testing, and fertilizer calculations to highlight the connection between soil health and the global food supply.
Author: Isabelle Paulsen (2024)
Target Age Level: Middle School
Description: Students investigate water quality indicators and macroinvertebrate diversity to understand the health of local aquatic ecosystems.
Author: Elizabeth Simmermeyer (2021)
Target Age Level: Upper Elementary
Description: This unit explores the water cycle, pollution, and filtration through hands-on modeling and collaborative problem-solving.
Author: Brenda C Matos (2025)
Target Age Level: Gifted Middle School (7-8)
Description: In this inquiry-based lesson, students explore the critical role of water in the global food system by investigating its properties, distribution, and the impact of agricultural practices on water quality.
Authors: Jenny Blackburn & Sarah Thies (2022)
Target Age Level: Middle School
Description: Students take on the role of food scientists and packaging engineers to experiment with browning prevention and design sustainable packaging.
Author: Alejandra Prado-Jaramillo (2024)
Target Age Level: High School
Description: High school students explore the connections between nutrients, food systems, and food insecurity to make informed dietary choices.
Authors: Miranda McGuire & Yufei Guo (2021)
Target Age Level: Middle to High School
Description: This unit uses a multidisciplinary approach to teach participants about meat quality, USDA grading, and the chemistry of cooking.
Author: Oseremi Olivia Jagbojo (2023)
Target Age Level: Middle School
Description: Students investigate the relationship between temperature and bacterial growth to determine appropriate storage conditions for dairy products.
Author: Pat Polonsky (2020)
Target Age Level: High School
Description: This unit integrates chemistry and food technology to explore milk composition and the engineering behind dairy processing.
Author: Olivier Ntaganzwa (2023)
Target Age Level: Middle School
Description: Middle schoolers investigate the biology, economics, and chemistry of coffee as it moves through the global value chain.
Author: Ian Rimer (2024)
Target Age Level: Middle School
Description: Students investigate how plants transport water from soil to leaf and apply these concepts to design agricultural irrigation strategies.
Authors: Stephen McBride & Brooke Stafford (2020)
Target Age Level: Middle School
Description: Using the context of urban gardening, students explore soil particle size, pH levels, and nutrient management.
Author: Elizabeth Ragland (2022)
Target Age Level: Elementary to Middle
Description: This unit tracks the flow of energy through food webs and explores how agricultural practices influence ecosystem balance.
Author: Kaley Mumma (2025)
Target Age Level: Elementary to Middle
Description: This mini-unit guides students through an investigation of the biological process of decomposition and the nutrient cycle by identifying suitable organic materials and creating their own healthy soil ecosystems.
Author: Jemuel S. Doctolero (2024)
Target Age Level: 2nd Grade
Description: Second-grade students learn about responsibility and aquatic biology by exploring the care requirements of various aquarium fish.
Author: Madison Gits (2021)
Target Age Level: Middle School
Description: Students investigate insect metamorphosis and use real-world data to develop integrated pest management strategies.
Author: Brittney Emmert (2025)
Target Age Level: High school (11-12 grade)
Description: In this mini-unit, high school students act as animal scientists to investigate how caged versus cage-free housing systems impact the bone mineral density and breaking strength of laying hens.
PowerPoint: Hen Housing Dilemma Introduction PowerPoint
Authors: Elizabeth E. Ogar & Fawziah Alghamdi (2024)
Target Age Level: High School
Description: This series examines how shifting weather patterns affect food security and challenges students to engineer resilient agricultural solutions.
Author: Austin Jenkins (2022)
Target Age Level: High School
Description: Students analyze factors contributing to food insecurity and evaluate the role of genetically modified organisms in the food system.
Author: Rudan Wang (2025)
Target Age Level: High School (grade 11)
Description: In this inquiry-based mini-unit, high school students use mathematical modeling and carbon calculators to analyze the carbon cycle and compare the environmental impact of different agricultural management practices.
Author: Laura Workman (2023)
Target Age Level: Middle School
Description: Participants explore how nature solves complex problems to design their own bio-inspired prototypes for everyday challenges.
Author: Elizabeth Thiel (2022)
Target Age Level: Middle School
Description: Using literature as a guide, students engage in an engineering challenge to construct solar cookers for water purification.
Author: Dan Bollock (2020)
Target Age Level: High School
Description: Students apply principles of density and specific gravity to design, build, and strength-test model chairs made from various wood species.
Author: Kwabena Bayity (2025)
Target Age Level: Middle to High School (Grade 8-9)
Description: This mini-unit challenges high school students to investigate the biological and chemical factors of soil health by analyzing soil samples and applying the engineering design process to develop sustainable soil remediation plans.