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Soil by Mind Map: Soil

1. is made of

1.1. Organic Matter

1.1.1. breaks down into nutrients

1.1.2. Nitrogen

1.1.3. Phosphorous

1.1.4. Potassium

1.2. Rocks

1.2.1. Sand

1.2.2. Silt

1.2.3. Clay

2. Can be decribed by

2.1. Color

2.1.1. Brown

2.1.2. Red

2.1.3. Grayish

2.2. Consistence

2.2.1. loose

2.2.2. firm

2.2.3. friable

2.3. Texture

2.3.1. Grainy

2.3.2. Silky

2.3.3. Sticky

3. Layers

3.1. Topsoil

3.1.1. Topsoil is called Horizon A it is the darkest soil and is made most of decomposed things.

3.2. Subsoil

3.2.1. Subsoil contains humus and organic matter.

3.3. Parent Material

3.3.1. Parent Material is made of disintegrated rocks.

3.4. Solid Rock

4. Types

4.1. Grassland Soil

4.1.1. Kansas is a Grassland State

4.2. Desert Soil

4.2.1. Arizona is a Desert State

4.3. Forest Soil

4.3.1. Indiana Is a Forest State

4.4. Tropical Grassland Soil

4.4.1. California has Tropical Grassland Soil