Sand doesn't hold many nutrients or water

Silt is a soil particle whose size is between sand and clay.

Soils high in clay content are called heavy soils.

Most of the water in a clay soil is so tightly bound to the clay particles that plants can't get it loose.

The amount if moisture found in soil varies greatly with the type of soil, climate and the amount of humus (organic material) in that soil.

The organic content of soil greatly influences the plant, animal and microorganism populations in that soil.

rainwater (if its not polluted) has a normal pH of about 6 - 6.5, which is slightly acidic.

It should then come as no surprise that most plants grow their best at around the same pH*.

Soil structure tells how the soil affects the movement of water, air and root penetration into the soil.

Soil temperature has a significant role in helping to determine the rate of plant growth, and whether a plant will even survive.

Sandy soil absorbs more than two inches of water per hour. It is very porous, with large spaces between soil particles.

Loam soil absorbs from .25 inches to 2 inches per hour.

Clay soil absorbs less than .25 inches of water per hour.

Sandy soil Loam soil, and Clay soil

It is a combination of sand and clay particles.