Properties of Earth Materials
Earth materials are rocks solid and water, soils and the gases from the atmosphere. Materials have various properties which can make them helpful for different purposes, for example buildings, food and fuels. Soils have got properties of texture and color; ability to hold water and grow plants. Fossils provide evidence regarding animals and plants that lived long time ago and also the nature of the world at that time.
Plants as Earth Material
Plants also need certain mineral nutrients from soil for repair, growth and correct functioning. Nutrients dissolve within water and so are absorbed through plant roots. Several factors impact whether plants may take up nutrients inside the soil, the most crucial of which is actually pH, a measure from the alkalinity or acidity with the soil. Even when your soil has a lot of nutrients, a pH below or above the ideal range (6.0 to 6.8 for the majority of garden plants) can stop your plants from obtaining the nutrients they require.
Rocks as Earth Material
Rocks are usually classified by chemical composition and mineral, through the texture with the constituent particles and also by the processes which formed them. These types of indicators separate rocks directly into sedimentary, igneous and metamorphic. They may be further classified based on particle size. The transformation of 1 rock type to a different is described from the geological model known as the rock cycle.
Soil as Earth Material
Soil can be a natural body composed of layers (soil horizons) of mainly mineral constituents of a variable thickness, which vary from parents materials within their physical, morphological, chemical, and mineralogical characteristics. In engineering, soil is called regolith, or perhaps loose rock material. Strictly talking, soil will be the depth of regolith which influences and it has been through plant roots.
Soil forms a structure which is full of pore spaces and will be thought of as a combination of water, solids and air (gas). Accordingly, soils in many cases are treated like a three state system. Many soils use a density between 1 and two g/cm³. Little from the soil of the world is older than the Tertiary and many no old than the Pleistocene.
Water as Earth Material
Water is actually the chemical substance along with chemical formula H2O: a single molecule of water provides two hydrogen atoms covalently bonded with a single oxygen atom. Water seems in nature in most three common states of matter and could take numerous forms on the planet: clouds and water vapor in the sky; sea water and icebergs within the polar oceans; glaciers and rivers in the mountains; and also the liquid in aquifers in the ground.