Introducing engineering to ages 12-18 using microgreens is both educational and engaging. Here are a few ideas:

1. Designing Optimal Growth Conditions: Challenge students to engineer different growth environments for microgreens. They can design and build mini-greenhouses, explore lighting setups (LED vs. natural light), or create irrigation systems to optimize water delivery.
2. Building Automated Monitoring Systems: Task students with creating sensors or monitoring systems using simple electronics (like moisture sensors or light meters) to track and optimize microgreen growth conditions. This involves basic circuit design and programming.
3. Structural Engineering with Microgreen Supports: Have students design and build supports for microgreen trays that maximize space and airflow while ensuring stability. This can incorporate concepts of load-bearing structures and material science.
4. Bioengineering Challenges: Explore genetic engineering concepts by discussing how traits in microgreens can be modified to enhance nutritional content or growth rates. Students can research and propose genetic modifications (hypothetically) that could improve microgreen characteristics.
5. Environmental Impact Assessment: Engage students in analyzing the environmental footprint of microgreen production. They can calculate energy use, water consumption, and waste generation, then brainstorm engineering solutions to reduce environmental impact.
6. Designing Sustainable Packaging: Challenge students to engineer eco-friendly packaging solutions for microgreens that maintain freshness and minimize waste. This involves considering materials science, product design, and sustainability principles.
7. Robotics for Microgreen Farming: Introduce basic robotics concepts by tasking students with designing and programming simple robots to assist in microgreen cultivation tasks, such as seeding, watering, or harvesting.

These ideas leverage microgreens as a practical and tangible tool to introduce various engineering disciplines, fostering critical thinking, problem-solving, and creativity among teenagers.

Recommended Video for older students:

What is Engineering? What is engineering? Well, it’s everywhere. It’s the clothes we wear, food we eat, places we live. But what do engineers do? Why is engineering important? What are the different areas of engineering? An explanation of the different types of engineering and how it applies in our lives. By Leeds University, UK

For younger students, introduce engineering concepts using microgreens in a hands-on, fun, and simple way. Here are a few ideas:

1. Building Mini-Greenhouses: Let students design and create their own small greenhouses using simple materials like plastic bottles or clear containers. They’ll explore how the greenhouse effect helps plants grow and how to create the best environment for their microgreens.
2. Designing Watering Systems: Challenge students to build simple watering systems for their microgreens. They can use materials like straws, cups, and rubber bands to create a basic drip irrigation system that delivers water evenly across their trays.
3. Creating Microgreen Supports: Have students design supports for microgreens that allow them to grow taller without falling over. This could involve building small trellises or using materials like popsicle sticks to create simple structures.
4. Exploring Plant Growth with Light: Introduce students to the concept of light and its importance for plant growth. Have them experiment with different light sources (like flashlights, lamps, or natural light) to see which works best for microgreens. They can build a “light box” to test different lighting setups.
5. Simple Machines for Gardening: Teach students how simple machines like pulleys or levers work by using them to move soil, water, or trays. They can create basic mechanical devices to help in the care of their microgreens.
6. Creating Terrariums: Let students create small, sealed environments (terrariums) where they can grow their microgreens. This project helps them understand ecosystems and how engineering can help create environments for plants to thrive.
7. Designing Eco-Friendly Containers: Challenge students to make containers for growing microgreens from recycled materials like cardboard, plastic containers, or old jars. This introduces concepts of sustainability and engineering design, while encouraging creativity.

These activities offer a hands-on way for younger students to engage with engineering concepts, while also fostering curiosity and a deeper understanding of how microgreens grow and thrive.

Recommended Video for young students:

• 
  Engineering For Kids: What Is Engineering? A big adventure about discovering the amazing world of ENGINEERING! By KIDU (Kids’ University)

Lesson Plan:

STEM: Engineering: The HydroHero Challenge: Design a Self-Watering System