1
Made of
Tiny rocks, decayed plants/animals, water, air, microbes.
🪨 + 🍂 + 💧
Soil
📖 Study · Soil
Soil
Soil is the top layer of Earth where plants grow. It's made of tiny rock pieces, dead plants and living things.
🎯 What you'll learn
- ✓Know what soil is made of
- ✓Tell soil types apart
- ✓Why soil matters
2
Soil types
Sand (drains fast). Clay (holds water). Loam (great for plants).
Sand · Clay · Loam
3
Soil life
Earthworms, ants, fungi, microbes live in soil.
🪱 🐜 🍄
4
Soil layers
Topsoil, subsoil, rock layer. Plants need topsoil.
topsoil ↑ rock ↓
5
Earthworms help
They break down plant matter and aerate the soil.
🪱 + soil ✓
6
Soil erosion
Wind and rain wash soil away. Plants help hold it.
🌬️ + 🌧️ → erosion