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Soil! By: Oksanna Loya

Soil!

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Soil!. By: Oksanna Loya. Soil!. Soil is a thin layer ontop of most of the Earth’s land surface. This thin layer is a basic natural resource which deeply affects every other part of the ecosystem. - PowerPoint PPT Presentation

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Page 1: Soil!

Soil!By: Oksanna Loya

Page 2: Soil!

Soil! Soil is a thin layer ontop of most of the

Earth’s land surface. This thin layer is a basic natural resource

which deeply affects every other part of the ecosystem.

Soils are composed of three main ingredients: minerals of different sizes, organic materials from the remains of dead plants and animals, and open space that can be filled with water or air.

Page 3: Soil!

Soil components All ingredients making soil.

AirWaterOrganic MatterMinerals

Page 4: Soil!

Soil Components Contd. Clay- very fine particles. Compacts easily.

Forms large, dense clumps when wet. Gravel- Coarse particles. Consists of rock

fragments. Loam- About equal mixtures of clay, snad,

silt, and humus. Sand- Sedimentary Material coarser than silt. Silt- sedimentary material consisting of very

fine particles.

Page 5: Soil!

Factors of Soil! Parent Materials- the rock and minerals

from which the soil derives. Climate- measured by precipitation and

temperature. Living Organisms- Includes many things

from fungi, to worms that can help decompose litter.

Topography- physical characteristics of the location of the soil.

Page 6: Soil!

Soil Pathways

Page 7: Soil!

Soil Horizons or Layers

Page 8: Soil!

Soil Food Web

Page 9: Soil!

Organic vs. Inorganic Fertilizers Organic-Three common forms: animal

manure, green manure, and compost. Helps prevent erosion of soil.

Inorganic- Does not add humus to soil, resulting in less ability to hold water. Supplies only a limited number of nutrients.

Page 11: Soil!

Review Questions! 1. What components make up soil? A- air, water, rock, minerals B- wind, air, water, rock C- air, water, organic matter, minerals

Page 12: Soil!

Review Questions! 1. C

Page 13: Soil!

Review Questions! 2. What type of layer is soil on earth? A-Thick B-Thin

Page 14: Soil!

Review Questions! 2. B

Page 15: Soil!

Review Questions! 3. What is clay? A- Coarse Particles B- Sedimentary Material C- Very fine particles

C

Page 16: Soil!

Review Questions! 3. C

Page 17: Soil!

Review Questions! What is Gravel? A- Very fine particles B- equal mixtures of clay, sand and silt. C- Coarse particles

Page 18: Soil!

Review Questions! 4. C

Page 19: Soil!

Review Questions! What is Loam?

A- Very fine particlesB- equal mixtures of clay, sand, and siltC- Sedimentary material

Page 20: Soil!

Review Questions! 5. B