Integration: Biology / Chemistry / Geography / History

Soil literacy isn’t confined to isolated projects, it’s a lens for interdisciplinary learning. This Section shifts focus to integrating soil concepts across secondary school subjects.

Discover how to align soil themes with existing curricula, whether through data analysis, historical contexts, or social and ethical discussions. These strategies help students recognize soil’s role in interconnected systems, bridging classroom theory to global challenges like food security and climate resilience.

The following list of examples might inspire you on how to integrate soil literacy in the regular subjects.

Choose one from the list and reflect on how you would implement it in your class. Share your thoughts and ideas on the class forum and engage with your peers.

Before getting into some experiements, check this 'what is dirt' video that can get kids students inspired to learn and practice more.

Biology.

• Microorganism exploration: Identify and classify soil microorganisms through microscopic analysis. Create a biodiversity map.

• Decomposition study: Composting experiment investigating decomposition rate and effect on soil nutrient content.

• Study of bioindicators: Identify earthworms and other organisms as indicators of soil health.

Chemistry.

• Soil pH investigation: Conduct experiments to measure the pH of different soil samples and research how acidity or alkalinity affects plant growth.

• Nutrient cycle project: Visual cycle of essential soil nutrients; explore nitrogen fixation with legumes.

• Pollution detectives: Investigate sources of soil pollution (heavy metals, PFAS) through laboratory simulations.

• Bioplastics in the soil: Compare decomposition of different plastics with homemade bioplastics.

Geography.

• Soil erosion models: Scale models simulating erosion and mitigation strategies (terracing, cover cropping).

• Soil world map: Research and present on various soil types around the world, linking to climate, vegetation, agricultural practices.

• Impact of climate change: Desertification and erosion advancing in certain areas of the world.

• Carbon sequestration: Soil's possible contribution to reducing CO₂ levels.

• SDGs: How soil health (SDG 15) relates to many others (SDG 1, 2, 6, 12).

History.

• Agricultural evolution: Historical farming practices and their impact on soil health over time.

• Civilization and soil: Soil's role in the rise and fall of ancient civilizations (e.g. Mesopotamia).

• Study of great famines: How soil degradation contributed to historical episodes of food scarcity.