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Weathering and Erosion PP
Weathering and Erosion PP

... into smaller pieces by external conditions. ...
Rock types Soil-forming factor 1: Parent material
Rock types Soil-forming factor 1: Parent material

... development of acidic conditions but may not support plants that are not tolerant of alkaline soil conditions (e.g. rhododendrons). Two types of parent material are recognised: a) unconsolidated deposits or loose sediments that have been transported by ice, water, wind or gravity and b) weathered ma ...
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... western Oklahoma and parts of the surrounding states. Wind blew dry particles of soil into great clouds of dust that traveled thousands of ...
File - Mrs. Malm`s 5th Grade
File - Mrs. Malm`s 5th Grade

... animals, microbes, and small organisms such as worms, all of these things provide nutrients to help plants grow. o Soil is fertile when it has a good balance of the four ingredients o Properties of soil include: color, texture (size of particles), the ability to retain water, and the ability to supp ...
Teacher Pre-assessment
Teacher Pre-assessment

... Please mark your answers on your answer sheet. 1. When students measure how much water will flow through a soil, they are testing the soil’s ______. a. porosity b. permeability c. hardness d. dissolvability 2. Which of these is a characteristic that applies to all minerals? a. They formed from organ ...
The Rock Cycle Rock – a naturally occurring solid mixture of one or
The Rock Cycle Rock – a naturally occurring solid mixture of one or

... The Rock Cycle Rock – a naturally occurring solid mixture of one or more minerals or organic material Rock cycle – the continual process by which new rock forms from old rock material Erosion – the process by which wind, water, ice, or gravity moves soil and sediment from one location to another Dep ...
6th Grade Earth Science
6th Grade Earth Science

... Mechanical / Chemical Weathering • _________________ - process of breaking Mechanical Weathering down rock into smaller pieces as a result of ice or water – MINERALS THAT MAKE UP THE ROCK DO NOT CHANGE! • ________________ - minerals that make up Chemical Weathering the rock change. • The cause of c ...
Weathering, Erosion, Deposition: Effects on the Texas
Weathering, Erosion, Deposition: Effects on the Texas

...  Investigated processes that change the surface of the Earth  Explored how the process of weathering, erosion, and deposition have affected the environments in Texas ecoregion. ...
GY 111 Lecture Note Series Weathering
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... type of weathering is called chemical weathering. This is the most important process in soil formation (see the next lecture) and involves chemical changes during the breakup of rock. The last of the weathering types (not always distinguished in texts) is biological weathering. This involves the act ...
Earth`s Processes Test Review
Earth`s Processes Test Review

... 6. Fill in the blank with the words epicenter and focus. The ___________________ is the point on the Earth’s surface directly above the ___________ (which is where an earthquake originates). 7. A seismograph measures and records ground movements during an _____________________________. ...
KEY
KEY

... Silicate minerals that are most susceptible to chemical weathering at the earth's surface a. must not be very dense (they have a low specific gravity) b. form under conditions of high temperature and pressure, very different from conditions at the surface . c. form at the surface by means of other w ...
PHYSICAL GEOLOGY
PHYSICAL GEOLOGY

... ENTRY LEVEL COMPETENCIES The student is assumed to have had not other college science courses but posses some proficiency in high school science and math. COURSE OBJECTIVES Upon completion of the course, the student will be able to: A. B. C. D. E. F. G. H. I. J. ...
Molten rock that comes to the surface of the earth is called:
Molten rock that comes to the surface of the earth is called:

... Please mark your answers on your answer sheet. 1. When students measure how much water will flow through a soil, they are testing the soil’s ______. a. porosity b. permeability c. hardness d. dissolvability 2. Which of these is a characteristic that applies to all minerals? a. They formed from organ ...
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... weight/pressure pushing down on the underlying rock. 3. When the pressure is reduced the rock can expand forming  cracks in lines of weakness in the upper parts of the rock. 4. Freeze‐thaw will cause the expansion and contraction of  joints – dilation – which leads to fracturing. Once moisture  seem ...
5.12 A interpret how land forms are the result of a combination of
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... A. Erosion is the process of moving particles from one place to another. C. Deposition is the process in which sediments are dropped from one place to another. D. Wind is a force that produces weathering or erosion. ...
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Name: Succession, Weathering, and Erosion REVIEW
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... 7. freezing and thawing M , C A. makes carbonic acid which forms caves and caverns. 8. release of pressure M , B ...
Unit E section-1.0-1.3
Unit E section-1.0-1.3

... This occurs when rock is broken apart by physical forces such as water and wind. - mechanical weathering ‘wears away’ - sedimentation ‘builds-up’ ...
Inner Structure of the Earth 3. Mantle
Inner Structure of the Earth 3. Mantle

... form; water freezes to ice in a crack (water expands 10% when frozen). Ice widens the crack and splits the rock. ...
Exogenous Forces and Weathering
Exogenous Forces and Weathering

... dry they crumble into a powdery substance Carbonation-occurs when carbon dioxide combines with water to from carbonic acid (the acid in soda water). Carbon Dioxide comes from decaying plants and root growth. This acid dissolves many rocks, such as limestone. Erosion: Another Major Exogenous Force We ...
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Rock Cycle

... Rocks that form when existing rocks are heated and squeezed deep inside the Earth. ...
Weathering
Weathering

... Frost Action / Ice Wedging Alternating freezing and thawing of water causes material to break up Abrasion by wind and water Wearing down or smoothing of a material due to constant collisions Plant and Animal Action Plant root growth and animals burrowing increase the exposure of rocks to the air and ...
16 - Madison Public Schools
16 - Madison Public Schools

... ...
Name Period ______ Date ______ Homework : Read chapter 7 and
Name Period ______ Date ______ Homework : Read chapter 7 and

... note-taking/reading study guide. ...
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Weathering



Weathering is the breaking down of rocks, soil and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, roughly translated to: ""with no movement"" , and thus should not be confused with erosion, which involves the movement of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity and then being transported and deposited in other locations.Two important classifications of weathering processes exist – physical and chemical weathering; each sometimes involves a biological component. Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. The second classification, chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals also known as biological weathering in the breakdown of rocks, soils and minerals. While physical weathering is accentuated in very cold or very dry environments, chemical reactions are most intense where the climate is wet and hot. However, both types of weathering occur together, and each tends to accelerate the other. For example, physical abrasion (rubbing together) decreases the size of particles and therefore increases their surface area, making them more susceptible to rapid chemical reactions. The various agents act in concert to convert primary minerals (feldspars and micas) to secondary minerals (clays and carbonates) and release plant nutrient elements in soluble forms.The materials left over after the rock breaks down combined with organic material creates soil. The mineral content of the soil is determined by the parent material, thus a soil derived from a single rock type can often be deficient in one or more minerals for good fertility, while a soil weathered from a mix of rock types (as in glacial, aeolian or alluvial sediments) often makes more fertile soil. In addition, many of Earth's landforms and landscapes are the result of weathering processes combined with erosion and re-deposition.
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