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1 - BC Learning Network
1 - BC Learning Network

... Earth Science 11 Learning Guide – Unit 7 ...
2. Formation of Soils
2. Formation of Soils

... 1. Unloading or Pressure Release This involves the removal of the materials overlaying rocks (by erosion, or other processes), which causes underlying rocks to expand and fracture parallel to the surface. e.g. Intrusive igneous rocks (e.g. granite) are formed deep beneath the Earth's surface. They a ...
Weathering and Erosion
Weathering and Erosion

... oxide • The iron oxide is washed away • What remains is reddish brown stained rock – can be seen all around Clayton Park ...
Weathering and Soil (p. 166-182)
Weathering and Soil (p. 166-182)

... Soils can originate through one of two ways: they can either be: _____________________ (formed in place), or ______________________ (brought in from somewhere else). Soil deposited during river floods are transported (e.g. along the Nile River each year). Transported soils may also be deposited by t ...
Word format
Word format

... Any weathering that involves the physical breakdown of rock is called mechanical weathering. There are five main types: 1. ________________: when water freezes and expands, forcing rock to break apart. How much does water expand when it freezes? ____________ What is the process called where fracture ...
Erosion, Transport, Deposition Key Words
Erosion, Transport, Deposition Key Words

... When a river or the sea throws and/or drags other rock fragments and stones against a surface and wears them down through friction. ...
Final Exam Study Guide Answer Key
Final Exam Study Guide Answer Key

... Sedimentary Rock 1. When sediments become cemented (glued) together to form a sedimentary rock 2. From pieces of other rock or sediment glued together 3. Sediments become buried, compacted, cemented then lithified (from the pressure) to become a sedimentary rock 4. On the surface of the Earth 5. Fro ...
Weathering and Soil Review Game
Weathering and Soil Review Game

... What do you call the series of processes that slowly change rocks from one kind to another? ...
Rock Cycle Slideshow
Rock Cycle Slideshow

... • May contain fossils or evidence of living organisms ...
Weathering
Weathering

... Weathering – the physical & chemical breakdown of rocks. I. Physical Weathering - rocks break into pieces - changing size and shape - but not their composition. ...
Physical and Chemical Weathering
Physical and Chemical Weathering

... Weathering – the physical & chemical breakdown of rocks. I. Physical Weathering - rocks break into pieces - changing size and shape - but not their composition. ...
Rocks and Weathering - 6thgrade
Rocks and Weathering - 6thgrade

... weathering. Water weathers rock by dissolving it. Oxygen – the oxygen gas in air is an important cause of chemical weathering. Ex: rust on a bicycle. Carbon Dioxide – it dissolves in rainwater and in water that sinks through air pockets in the soil. Living organisms – as plants grow its roots push i ...
10. 1 Directed Reading Answer Key
10. 1 Directed Reading Answer Key

... C_____16.Acid precipitation can result from a. ventifacts. b. abrasion. c. burning of fossil fuels. d. mechanical weathering. 17. Over a long period of time, acids in the groundwater can cause chemical weathering of limestone. This weathering can form a cavern, which is a type of karst features. 18. ...
What are the processes that cause the Earth`s surface to wear down?
What are the processes that cause the Earth`s surface to wear down?

... 2. What is the most frequent cause of rocks breaking apart? 1. Water freezing and thawing in rock cracks. Water expands when it freezes and enlarges the cracks. This causes the rock to eventually break apart. ...
physical geography - Brett`s Geography Portal
physical geography - Brett`s Geography Portal

...  Carbonation: where water dissolves rocks like limestone after combining with CO2 to form a weak acid (carbonic acid - H2C03). This leads to caves and spectacular Karst regions ...
Rockin` Geology Vocabulary
Rockin` Geology Vocabulary

... A solid material that is made up of one or more minerals and that may be used for its properties. ...
WeatheringandErosion
WeatheringandErosion

... • Horizon A – top layer of soil – litter of leaves twigs and other organic material – litter prevents erosion – topsoil – dark and fertile • Horizon B – below A – lighter in color – no litter – less fertile – leaching – removal of dissolved minerals – move from A to B ...
Sedimentary Rocks
Sedimentary Rocks

... (or larger = >2mm) • Require a lot of energy to transport, for example: fast rivers, glaciers, land slides – a. rounded = Conglomerate - transported a long distance by fast-flowing water (= fast fluvial) – b. angular = Breccia - transported a short distance by: • Glaciers - deposited when ice melts ...
weathering_2012-13
weathering_2012-13

...  Leads to fracturing parallel to the rock surface  Sheets of rock break away from the exposed rocks along fractures ...
10. 1 Directed Reading A
10. 1 Directed Reading A

... _____ 16. Acid precipitation can result from a. ventifacts. b. abrasion. c. burning of fossil fuels. d. mechanical weathering. 17. Over a long period of time, acids in the groundwater can cause chemical weathering of limestone. This weathering can form a cavern, which is a type of __________________ ...
File
File

... fast. They are constantly at work changing the face of our earth, both destroying land, and creating new land. ...
Soil is - Amazon S3
Soil is - Amazon S3

... Abrasion – grinding away of rock by rock particles carried by water, ice, wind, or gravity ...
UNIT TITLE: Readers Theater
UNIT TITLE: Readers Theater

... a. Solid to liquid  melting b. Liquid to gas  evaporation c. Gas to liquid  condensation d. Liquid to solid  freezing 4. In a chemical change, substances react with one another, and new substances are formed. For example, iron reacts with oxygen gas in the air to produce a new substance called r ...
lesson 1 and water - Warren County Schools
lesson 1 and water - Warren County Schools

... NORMAL FAULT: WHEN ROCKS ARE PULLED APART (HANGING WALL DROPS) REVERSE FAULT: WHEN ROCKS ARE PUSHED TOGETHER (HANGING WALL RISES) ...
Earth*s External Processes
Earth*s External Processes

... • Weathering, mass wasting, and erosion are called external processes because they occur at or near Earth’s Surface and are powered by energy from the sun • Weathering – the physical breakdown (disintegration) and chemical alteration (Decomposition) of rocks at or near Earth’s surface • Mass wasting ...
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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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