Soil

Soil can be classified based on:

• streak, color, or hardness

• content, texture, or grain size

• color, texture, or luster

• content, texture, or color

What are types of soil?

• humus, clay, sand

• clay, sand, silt

• minerals, iron, sand

• humus, material, clay

The best type of soil for growing plants is:

• clay

• silt

• loam

• sand

Why is loam the best type of soil for growing plants?

• it is a mixture of all three types

• it holds water easily

• it has sand in it

Humus is mad of...

• rocks

• minerals

• decayed parts of once living organisms

• cay

What kind of grains does sand have?

• very small

• large

• medium

The grains of silt are...

• smaller than sand, but larger than clay

• larger than sand, but smaller than clay

Silt feels like...

• rubber

• gritty

• powder

Sand feels...

• like rubber

• gritty

• like powder

When clay is wet, it...

• is soft.

• is gritty.

• is hard.

• is sticky.