How does the Earth Change?. The process in which materials on or near the Earth’s surface break...

How does the Earth Change?

The process in which materials on or near the Earth’s surface break down and change

Types of Weathering:Mechanical (Physical) WeatheringChemical Weathering

Process by which rocks break down into smaller pieces

DOES NOT involve a change in composition

Frost wedgingFreeze - thaw cycle of

water in cracks of rocks

PressurePressure causes

curved cracks in rockThe stripping away of

rock layers is known as exfoliation

Another example is tree roots pushing through rock

Process by which rocks and minerals undergo changes in their composition

Agents of chemical weathering:Water, oxygen,

CO2, acid precipitation

Can be affected by:Climate

Warm, humid areas weather fasterRock Type and Composition

Certain rocks weather easierSurface Area

Amount of area exposed

Removal of weathered rock and soil from its original location

Agents of erosion:GravityMoving waterGlaciersWind

Force of gravity tends to pull all materials down slope

Rivers and streams carry sediments

Waves against shorelines cause erosion of the shoreline

Glaciers can carry huge rocks and debris Leave U-shaped depressions called moraines

• Wind can pick up and move fine dry particles

What types of weathering and erosion can be found in Paramus??

EXAMPLES?

Can Humans and other living creatures be an agent of erosion??

Rock CycleHow does the Earth change?

Rock Cycle• Continuous, dynamic set of processes by which

rocks are changed into other types of rocks• Any rock can be changed into any other type of

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

Sediments

Rock Cycle

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

Sediments

Rock Cycle

Melting

MeltingMelting

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

Sediments

Rock Cycle

Melting

Cooling and Crystallization

Melting

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

Sediments

Rock Cycle

Melting

Heat and Pressure

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

Sediments

Rock Cycle

Melting

Heat and Pressure

Weathering & ErosionW & E

Igneous Rocks

Sedimentary Rocks

Metamorphic Rocks

Sediments

Rock Cycle

Melting

Heat and Pressure

Weathering & ErosionW & E

Lithification

How does the Earth Change?. The process in which materials on or near the Earth’s surface break...

Documents

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Chapter 23: Earth’s Changing Surface Objectives: What is weathering & erosion? Give examples of mechanical and chemical weathering. How do weathering &

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Weathering, Erosion, and Soil Chapter 7. Section 7.1 Weathering Weathering is the process by which rocks on or near Earth’s surface break down and change

Weathering and Erosion. What is weathering? Weathering is process of breaking down and changing of rock at or near Earth’s surface. The two types of weathering

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Erosion & weathering change

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CHAPTER 7: WEATHERING & SOIL. Aim: How does weathering change Earth’s surface?

WEATHERING & EROSION What is Weathering? Process by which rocks on or near Earth’s surface break down and change