Gravels are the largest particles in soil and clay particles are the smallest particles.
- Clay is the smallest particle amongst the other two types of soil.
- The particles in this soil are tightly packed together with each other with very little or no airspace.
- This soil has very good water storage qualities and makes it hard for moisture and air to penetrate into it.
- It is very sticky to the touch when wet, but smooth when dried.
- Clay is the densest and heaviest type of soil which does not drain well or provide space for plant roots to flourish.