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Soil is a mixture of tiny particles of rock, dead plants and animals, air and water. Different soils have different properties depending on their composition.

• Sandy soil is pale coloured and has large particles. These create lots of small air gaps. Water drains through them easily so it usually feels dry.
• Clay soil is usually sticky and has small particles. They contain very few air gaps and water does not drain through it easily.
• Chalky soil is a light brown soil. Water drains through it quickly.
• Peat does not contain any rock particles. It's made from very old decayed plants and is dark, crumbly and rich in nutrients.