<p> Chapter 5 – Weathering, Soils, Mass Movements What you NEED to KNOW!</p><p>Know and understand the soil texture triangle (pg 134 ), how to read it, and how to locate information on it.</p><p>The horizontal cross sections of soil are called this:</p><p>All of the above organized from top to bottom are called this:</p><p>Define mass movement:</p><p>What effect have humans had on the rate of erosion?</p><p>Vegetation removal can cause a mass movement how?</p><p>Where would chemical weathering be more effective?</p><p>What happens to the volume of water when it freezes?</p><p>The upper-most layer in most soil profiles:</p><p>Define frost wedging:</p><p>Contrast the following mass movements (make sure to include what falls, and the speed of the movement): rockfall, slide, slump, flow, creep.</p><p>Why would mass movements have a greater chance of occurrence during a wet spring before plants start growing?</p><p>When feldspar is chemically weathered, this is produced:</p><p>Know and understand the soil profile diagram on pg 138. Be able to locate different features within it.</p><p>Triggers of mass movements include:</p><p>Define mechanical weathering. Is it the same as physical weathering?</p><p>Define chemical weathering:</p><p>What determines the texture of a soil?</p><p>The power source of ALL mass movements:</p><p>The mass movement that is caused by freeze/thaw cycles in soil moisture is: The 5 factors of soil formation. The one that has the greatest effect:</p><p>Where would you expect soil formation to be greatest, on a (steep/gentle) slope with a (warm/cold) climate.</p><p>The 4 main components of soil:</p><p>Which weathers quicker, granite or marble? Why?</p><p>The name of a common tropical soil is:</p><p>Contrast chemical and mechanical weathering:</p><p>The factors that effect the rate of weathering in rock are:</p><p>What are some factors that effect the rate of soil erosion?</p>