PPT-Some Recent Research Regarding Soil Physical Properties

Russell Yost PhD Department of Tropical Plant and Soil Science University of Hawaii at Manoa Particle size determination in Soils of the Tropics Some weathered soils of the tropics those containing large amounts of hydrous . (2.2)PHYSICAL PROPERTY. A physical property is any characteristic of a material that can be observed or measured without changing the composition of the substances in the material. . Viscosity, conductivity, malleability, hardness, melting point, boiling point, and density are examples of physical properties.. What are your thoughts on these pictures. Physical . Chemical. &. Properties of the soil. Soil. (1) Physical . Properties. This relates to the physical characteristics of the soil. . eg. Matter. Every element/compound is unique in some way from all others.. If you know enough about a substance, you can figure out what it is.. If you know what a substance is, you can know all types of things about it.. Blue Color. Blue Color. Physical property. Density. Density. Physical property. Flammability. Flammability. Chemical property- The original substance is fundamentally changed. . Solubility- (dissolves into a liquid to make a solution). TEK 5.5 A – Students will classify matter based on physical properties…. Matter. Matter. is any living or non-living thing in the universe. All objects, things, plants, people, animals, etc are made up of matter. 2004. ) argued that depolymerization and subsequent plant-microbial competition for N-containing organic monomers regulates N availability. Building upon this model, . we present a new conceptual framework arguing that along with depolymerization, mineral-organic associations may proximally regulate the provisioning of bioavailable organic N monomers especially in the rhizosphere. . 6.P.2.3. Warm Up . This is an example of matter; . Can you identify it?. How would you classify it?. Think of ways scientists could classify different types of matter?. Classification of Gold. At room temperature. Chapter 2 Section 2. Describing matter. Matter: anything that has mass and takes up space. Mass – the amount of matter in something. Volume – the amount of space something occupies. Which of the following is matter?. Introduction to Agriculture. Soil Science. Unit 2. Physical Properties. Physical properties or characteristics of the soil determine to a large degree how useable and productive soil will be. Productivity of soil is affected by the physical properties of soil. Physical & Chemical Changes. © 2013 Michelle Brosseau, Mrs. Brosseau’s Binder. Matter is anything that has . mass. . and takes up . space. .. Chemistry is the study of matter and the changes it undergoes. . . Visual Evaluation of . Soil. Structure (VESS) . at . clod. . scale. .  . CoreVESS. Alice Johannes. 1,2 . & Pascal Boivin. 1. 1. University of . Applied. Sciences of Western . Switzerland. Soil Particles . Diameter (mm). Gravel . 2.00 mm. Pine gravel (very coarse sand). 200-1.00 mm. Coarse sand. 1.00-0.500 mm. Medium sand. 0.5-0.25 mm. Fine sand. 0.25-0.10 mm. Very fine sand. 1. . . INTRODUCTION. Civil and environmental engineering includes the conception, analysis, design, construction, operation, and maintenance of a diversity of structures, facilities, and systems. All are built on, in, or with soil or rock. The properties and behavior of these materials have major influences on the success, economy, and safety of the work. Unit: Soil Science Lesson 3. Objectives. Define: aggregate, the four components of soil (mineral matter, organic matter, air and water), bulk density. Describe the basic characteristics of the three soil textures – sand, silt and clay.