There Is a Living STEM Lab Under Every Cleat
During this summer’s FIFA World Cup, some of the most closely engineered systems in the stadium were not cameras, scoreboards, or player-tracking devices.
They were alive.
Every World Cup match was played on natural turfgrass that had been researched, grown, transported, installed, monitored, and tested to perform consistently across dramatically different stadium environments in Canada, Mexico, and the United States. FIFA’s pitch program worked with researchers at the University of Tennessee and Michigan State University on a five-year project covering 16 stadiums, 84 training sites, and 178 practice fields. The goal was remarkably simple to describe and incredibly difficult to achieve: the ball should behave consistently whether a match was played indoors or outside, in Boston or Monterrey.
For K–8 teachers, that creates a winning STEM question:
How do you engineer a living plant to perform like a precision sports surface?
The answer brings together plant biology, soil science, climate, engineering, mathematics, technology, and data analysis.
It is also exactly the kind of real-world connection that makes sports such a powerful vehicle for STEM learning.
STEM Sports® is designed around that connection. Its K–8 curricula use sports as real-life applications for concepts that can otherwise feel abstract, combining physical activity with hands-on investigations while building critical thinking, collaboration, creative problem-solving, and leadership. The STEM Sports ebook makes the same point: students are more likely to understand why STEM matters when they can apply concepts to experiences they recognize instead of encountering them only on a worksheet.
A soccer field gives teachers one more place to make that happen.
Turfgrass Is More Than “Just Grass”
To students, grass may seem simple. It grows, someone mows it, and the game begins.
Sports turf tells a much richer story.
Turfgrass is living vegetation selected and managed to create a high-performance playing surface. For the World Cup, researchers had to consider durability, recovery, footing, and ball behavior while accounting for different climates and stadium conditions. Some World Cup venues used a blend of 84% Kentucky bluegrass and 16% perennial ryegrass, while others used 100% bermudagrass based on climate.
That one decision opens the door to an entire plant-science unit.
Why can one type of grass thrive in one climate but struggle in another?
Why does a plant need sunlight?
What happens below the soil when grass is watered?
How does a plant recover after thousands of footsteps?
What environmental variables could scientists measure before choosing a grass variety?
Suddenly, photosynthesis, plant structures, ecosystems, weather, adaptation, and experimental design are not isolated science standards. They are part of preparing a field for kickoff.
Start With the Science: Plants Have Performance Needs, Too
Athletes need certain conditions to perform. Plants do, too.
Turfgrass uses light for photosynthesis, absorbs water and nutrients through its root system, exchanges gases with its environment, and responds to temperature, shade, moisture, physical stress, and growing conditions.
That becomes especially interesting inside a stadium.
Some World Cup venues normally use synthetic surfaces or have roofs that reduce natural light. University of Tennessee researchers studied how to maintain natural grass without normal sunlight, while World Cup stadium systems incorporated supplemental grow lights where needed. Researchers noted that this work could have implications beyond sports because understanding how plants grow in limited-light environments can inform broader agricultural research.
For students, this is a powerful example of scientific thinking.
A scientist cannot simply say, “Grass needs sunlight.” The next questions are: How much? For how long? What happens when the amount changes? How can we measure the difference?
Those questions turn a familiar plant into an investigation.
Classroom Investigation: The Stadium Shade Challenge
Recommended grades: K–8, with complexity adjusted by grade band
STEM focus: plant biology, photosynthesis, measurement, variables and data
Plant the same grass seed in several identical containers. Give each container a different amount of light while keeping soil, water, seed quantity, and container size as consistent as possible.
Students can measure plant height, record germination, compare color or density, and photograph changes over time.
For younger students, the challenge can focus on observation and comparison. Older students can graph growth, calculate averages, identify independent and dependent variables, and explain why controlling variables matters.
Then introduce the sports connection: What would a turf scientist need to do if part of a stadium field remained shaded for most of the day?
Now students are not simply growing grass. They are solving a stadium problem.
Go Underground: The Engineering Beneath a World-Class Pitch
What students see above the ground is only part of the system.
World Cup turf was supported by carefully designed layers beneath the surface. At permanent venues, FIFA specifications included a sand-based root zone, a gravel drainage layer, irrigation, and systems designed to move excess water and help air reach the roots. Temporary fields used variations of the same idea depending on the stadium.
This is where plant science begins to look like engineering.
Roots need water—but too much water can create a different problem. Plants need support—but the growing medium also needs to allow movement of air and moisture. The final solution has to support both the biology of the plant and the performance requirements of the sport.
Instead of giving students the “correct” soil recipe, challenge them to investigate.
Classroom Investigation: Build a Root-Zone Recipe
Recommended grades: 3–8
STEM focus: soil properties, plant needs, experimental design and engineering
Give student teams several growing materials such as sand, potting soil, fine gravel, or another school-approved planting medium.
Their challenge is to design a mixture that can support grass growth while managing water effectively.
Before planting, students should make a prediction. Then they can plant identical seeds, add equal amounts of water, observe moisture retention, and measure plant growth over time.
The most important question comes after the results:
Would you keep your original design or change it?
That is authentic STEM learning. Students observe a system, collect evidence, identify trade-offs, and improve a solution.
World Cup Turf Was Tested—Not Just Grown
A field can look beautiful and still perform poorly.
That is why sports-turf scientists measure what happens when athletes and balls interact with a surface.
Michigan State reported that researchers used a device called fLEX, developed at the University of Tennessee, to simulate the interaction between a cleated athlete and the field. The machine could test surface performance, traction, and wear. Researchers also used a standardized soccer-ball drop and analyzed the resulting bounce interaction with the turf.
This gives students an important STEM lesson:
Appearance is not evidence of performance.
Engineers and scientists need measurements.
Classroom Investigation: Map Field Consistency
Recommended grades: 3–8
STEM focus: sampling, measurement, mapping and data visualization
Divide a safe section of a school lawn or playing field into a simple grid.
At several points, students can record variables such as grass height, shade versus sunlight, soil temperature if appropriate tools are available, visible grass density, or soil moisture using a consistent classroom method.
Then build a field map.
Are all areas identical?
Where do patterns appear?
Does shade correspond with shorter growth? Are heavily traveled areas different from less-used areas?
For middle school students, extend the investigation by calculating means, ranges, or percentage differences between sections.
The goal is not to declare one patch of grass “good” and another “bad.” It is to help students discover why scientists sample multiple locations before describing a system.
Turn Climate Into a Design Constraint
The 2026 World Cup created a turf challenge at a scale students can easily appreciate: one tournament, many locations, and different environmental conditions.
MSU researchers described the need to tailor grass mixtures and growing methods to different climate zones while still creating playing surfaces that behaved consistently.
That is an ideal engineering-design scenario.
Classroom Investigation: Choose the Pitch
Recommended grades: 4–8
STEM focus: climate, plant adaptation, decision matrices and evidence-based reasoning
Give teams three fictional host cities.
For example:
City A: warm temperatures, strong sunlight, lower rainfall
City B: cooler temperatures, moderate rainfall, long summer days
City C: indoor stadium, limited natural light, controlled temperature
Then provide three fictional turf varieties with different traits.
Students must decide which variety—or combination—belongs in each city and defend the choice using the available data.
There does not need to be one perfect answer. In fact, that is the point.
Professional STEM decisions often involve constraints and trade-offs. Students learn to justify a recommendation using evidence rather than simply choosing what “looks right.”
Sports Turf Can Make Earth and Life Science Feel Immediate
STEM Sports educator case studies reinforce why this kind of real-world context matters.
At East Cleveland City School District, Lisa Longino uses sports-based STEM to turn physical education into an academic extension of the classroom. She reported gains in engagement as students explored concepts including velocity, force, trajectory, and physiology. One of the biggest surprises was students’ response to STEM Golf: its ecology connections fascinated learners who had little previous exposure to the sport, and students eventually proposed transforming nearby space into a student-designed golf course.
That example is especially relevant to turfgrass science. Students do not need to enter a lesson already caring about agronomy or golf-course management. Sometimes the unfamiliar topic is what creates the curiosity.
Sixth-grade science teacher Amy Rosengren has seen a similar effect when the environment becomes part of the lesson. Her students were especially interested in exploring how Arizona heat changes basketball behavior because it connected a physics concept directly to conditions they experience every day. She describes STEM Sports as a springboard for deeper sports-based investigations beyond the core lessons.
Turfgrass gives educators that same opportunity: begin with something students can see outside the window, then uncover the STEM hiding underneath it.
Connecting Turfgrass Science to STEM Sports Curriculum
STEM Golf offers the strongest curriculum connection. Its lessons already explore how changes in the atmosphere and hydrosphere create different climates and how those conditions affect golf courses and their grass. Students also investigate gravity, distance, energy, angles, and other concepts tied to golf performance.
STEM Soccer gives educators a natural World Cup connection. The curriculum includes synthetic-versus-natural materials in grades 6–8, along with ball travel, field measurement, pressure, engineering, and data-based investigations. A turfgrass extension can help students ask how the playing environment interacts with all of those systems.
STEM Multi-Sport, Ball Edition brings together Baseball, Golf, and Softball lessons, making it useful for comparing how living playing surfaces differ across sports—from golf turf to outfield grass and infield environments.
And educators who want to start smaller can use the STEM Sports Playbook or a free sample lesson. The Playbook includes four sample lessons, 12 sports-based activities, 20 STEM concepts, and more than 30 education and career examples, while STEM Sports’ sample program lets educators try a standards-aligned curriculum module before implementing a full kit.
The Careers Beneath the Game
Turf science also helps answer one of the questions students ask most often:
“When am I ever going to use this?”
The researchers behind World Cup fields work across plant science, agriculture, engineering, data, technology, and sports operations. University of Tennessee’s turfgrass program highlights career experiences spanning FIFA, professional soccer, the NFL, golf, cricket, and major sporting events.
A turf-focused STEM investigation can introduce students to careers such as turfgrass scientist, agronomist, soil scientist, irrigation engineer, horticulturist, environmental scientist, sports-field manager, agricultural engineer, plant researcher, and sports-surface testing specialist.
The STEM Sports ebook emphasizes this bigger picture: a future in sports does not have to mean becoming a professional athlete. Connecting classroom concepts to the many STEM careers surrounding sports can give students a new reason to see themselves in both worlds.
From the Roots Up
Fans remember goals.
Players remember championships.
But scientists and engineers often notice the systems that made those moments possible.
At the 2026 World Cup, years of research went into something most viewers probably took for granted: the grass under the players’ feet. University of Tennessee researchers reported conducting hundreds of experiments to identify grass varieties and installation approaches that could produce consistent playing surfaces across all 16 stadiums, with lessons expected to extend beyond the tournament itself.
That is a powerful story to bring into a K–8 classroom.
A handful of grass seed can teach plant biology.
A container of soil can become an engineering problem.
A shady corner of a field can introduce experimental design.
A grid and ruler can turn students into data scientists.
And one soccer pitch can show students that STEM is not only around the game.
Sometimes, it is growing underneath it.