The unknown ecosystem.  What is soil? What is it made of? Where do we get if from? What is your “definition” of soil.

Slides:

Advertisements

Similar presentations

Soil Texture and Structure Chris Thoreau February 24, 2012.

Advertisements

Conceptual Aspects: Habitat Micro-organisms Bacteria, Fungi – both good and bad Viruses Macro-organisms Worms, Arthropods, Detrivores and Predators Plants.

Soil Characteristics and Texture

Conceptual Aspects: Habitat Micro-organisms Bacteria, Fungi – both good and bad Viruses Macro-organisms Worms, Arthropods, Detrivores and Predators Plants.

Unit 1 Lesson 5 Soil Formation

What on Earth is Soil?.

SOIL PARTICLES Soil provides support and nutrients for plant growth.

Texture Soil texture is determined by the size of the weathered rock particles it contains Sand – 0.05 – 2 mm, feels gritty Does not hold water well.

Properties of the Different Kinds of Soil

Characteristics Texture Soil Profile Soil Types Threats to Soil

Soil Composition – What Dirt is Made of

Properties of soils Agriculture 2.

Science 3G Ch 3C McGrath Soils Science Review Chapter 3C Flash Cards!

All About Soil All About Soil. Soil can basically be separated into 5 main parts: 1.Humus 2.Clay 3.Silt 4.Sand 5.Gravel.

Properties of Soil. Where does soil come from and how does it form? Most soils were originally created through the breaking down (weathering) of the solid.

What's your type? Squeeze some soil between your fingers. Is it crumbly? Sticky? A soil's texture depends on the size of its particles. And living things.

What does the plant say to the worm who offered it a slice of pizza?

How Solid Forms Chapter 2 Section 3 6 th Grade Team.

ALL ABOUT SOIL.

Soil Components Melissa Morris. Four Major Components Organic Matter Water Air Mineral Materials Exist in a close mixed condition Interactions among components.

The Nature of Soil Essential Question:

3G Science - Soils. 3 Layers of Soil Topsoil – top layer of soil. Has the smallest grains. Most humus. Richest layer of soil. Subsoil – Under the topsoil.

NATURAL SCIENCES GRADE 5 The Surface of the Earth: Soil Types.

Most Often Missed on DIRT! Lab. Part 1 - Texture 1 a) & b): Use the Pyramid’s vocabulary Example: Sandy loam, Clay Loam, etc. 2: More tests will provide.

Our Soils CGR 4MI. What is Soil?  To the engineer, soil is a foundation to build.  To the ecologist, soil supports and connects ecosystems.  To the.

Soil Mixture of geologic and organic materials. Needed for plant growth, water filtration, habitat, biogeochemical cycles.

AP Environmental Science Soil Resources (Ch 14) Living in the Environment, 14th edition, G. Tyler Miller.

Soil Structure. Soil Structure? ‘Arrangement of soil particles, pores and aggregates within a soil body’ Soil produces aggregates – clumps of soil that.

Weathering and Soil Formation

TEKS 4.7A The student is expected to examine properties of soils, including color and texture, capacity to retain water, and ability to support the growth.

That can be observed and measured to predict soil quality

Soil Sand, Silt, Clay.

Triomes example – students have 56 small triangles. They find a key term of which there are 14 (bold and underlined). They then make a larger triangle.

Soil! By: Oksanna Loya.

Chapter 4 Physical Properties of Soil. Texture Density Permeability Porosity Structure Tilth Compaction Temperature Color Soil physical properties are.

Soil, Soil Formation, and Soil Layers

SOILS & SOIL TYPES. What is soil? Soil is one of the basic resources we need to survive – like air and water. the surface layer of the Earth that contains.

CHAPTER 5.2 Soil. CHARACTERISTICS OF SOIL Soil is what is made from weathering and covers most land surfaces. Soil is what is made from weathering and.

Components of a fertile soil

AP Environmental Science Soil Resources Living in the Environment, 14th edition, G. Tyler Miller.

Soil Formation and Composition

Earth’s Changing Surface

Soil on Earth. Write five things that comes to mind when you hear the word “soil”. WARM UP.

How Much Fertile Soil Does Earth Have?

Soils. Formation of Soils Physical Weathering Rain, wind, abrasion Chemical Composition is not altered Influenced by climate Chemical Weathering Acid.

Earth’s Resources: Soil. What is soil? The outermost layer of the earth’s crust The outermost layer of the earth’s crust Made up of both organic (from.

Soil Formation and Composition Biotic (living) Abiotic (nonliving) 1. Make a table and list 5 examples of each.

Soil The Rhizosphere. Four distinct components of soil: Four distinct components of soil: inorganic mineral particles inorganic mineral particles water.

How Soil Forms WEATHERING AND SOIL. Soil is the loose, weathered material on Earth’s surface in which plants can grow. WHAT IS SOIL?

Earth Matters: Investigating Soil. Where Does My Lunch Come From?

18.3 Soil and Its Formation Objectives Describe the relationship between climate and soil formation. Identify different soil types and how they influence.

Soil Class Notes. Soil Soil is made of out of rocks, dead plants, and animals. Decomposed plants and animal remains add nutrients to the soil.

All About Soil All About Soil. Soil can basically be separated into 5 main parts: 1.Humus 2.Clay 3.Silt 4.Sand 5.Gravel.

What Are Some Types of Soil?

In a thimble full of soil - about a gram weight - you can expect to find million to 1 billion bacteria - Several yards to several miles of fungi.

HOW SOIL FORMS 6.E.2.3 Explain how the formation of soil is related to the parent rock type and the environment in which it.

Unit 6 Lesson 3 What Is Soil? Copyright © Houghton Mifflin Harcourt Publishing Company.

Soil The foundation for life!. How much soil is there?

Properties of Soil TSW – Examine properties of soil including color and texture, capacity to retain water, and ability to support the growth of plants.

Soil Formation and Composition.  I. Soil Formation –A. When bedrock is exposed, it weathers. –B. Particles of rock mix with other material. –C. Soil.

7-4.4 SOIL QUALITY. Soil is one of the most valuable abiotic factors in an ecosystem because everything that lives on land depends directly or indirectly.

The unknown ecosystem THE DIRT ON SOIL.

Natural Sciences and Technology Grade 5

Soil 7.EC.5A.2 Construct explanations of how soil quality (including composition, texture, particle size, permeability, and pH) affects the characteristics.

7.EC.5A.2 Construct explanations of how soil quality (including composition, texture, particle size, permeability, and pH) affects the characteristics.

Soil Sand, Silt, Clay.

Presentation transcript:

The unknown ecosystem

 What is soil? What is it made of? Where do we get if from? What is your “definition” of soil

 The number of organisms in one shovelful of soil  The number of humans on earth

 More in one shovelful than all the humans that have ever lived on earth  Many don’t even have names yet

 Start with minerals  Add organic materials (humus)  Water  Air A Recipe for Soil

 It takes 100 to 100,000 years to form one meter of soil  Soil forms by weathering and decomposition.  Faster in warmer climates  Why?

 Mineral (weathered rock) = 45%  Air = 25%  Water = 25%  Organic matter (humus) = 5%

 Dark organic matter from decomposed plants and animals  Provides nutrients for crops  Soil organisms feed on it  Absorbs and holds water

 1000 fit on the head of a pin.  Divide to reproduce every 20 minutes.

 Arachnids  No eyes (it’s dark in the soil)  Eat only fungus

 Also called round worms  Only 1 mm long  Some eat bacteria, some eat detritus, some eat fungus

 Live 3 to 6 years  Eat detritus, also swallow soil  Add bacteria back to soil

Tardigrade

 e.com/watch?v=Vu Hznslr8aI e.com/watch?v=Vu Hznslr8aI  e.com/watch?v=YF8 OJt_pujc e.com/watch?v=YF8 OJt_pujc  e.com/watch?v=cjV 2WP0wkvo e.com/watch?v=cjV 2WP0wkvo

The texture is caused by the size of the soil particles

 Sand – Between mm in size  Sandy soil drains quickly so roots can penetrate. Too much sand in a soil does not hold enough water and nutrients for most plants.  Does not shrink or swell so it makes a good foundation for buildings.

 Silt – Between mm in size.  Silt allows for air to circulate but still retains some water.  Silty soils do not usually hold enough water for most plants.

 Clay - <.002 mm in size. Water clings to tiny particles holding larger soil particles together forming clumps called aggregates.  Aggregates like gravel provide drainage channels for water. Water will not drain in soils with a lot of clay.  Clay is easily compacted, crushing air and water pore space. Plants root cannot penetrate through dense clay soils.  Clay is a poor material to build on because it swells with water.

 Loam is soil with a mixture of sand, silt and clay. It is the best type of soil for most crops