Weatheri ng The pieces or particles of rock (large and small)… ADD HERE Weathering occurs when rock is exposed to “weather events” (ex: wind, water, pressure.

Weathering Weathering

The pieces or particles of rock (large and

small)… ADD HERE

Weathering occurs when

rock is exposed to “weather events” (ex: wind, water,

pressure changes), as well as, the actions of organisms.

Chemical Weathering is the… ADD HERE

The red color in this rock represents chemical weathering. The original composition of the rock has changed due to its exposure to rain. The iron

minerals in the rock combined with the oxygen molecules in rain water to create iron oxide (rust).

The iron oxide in the rock can weather easily.

The statue has gone through chemical weathering. Water combines with carbon dioxide in the air to create carbonic acid.

Carbonic acid will dissolve specific minerals, such as those found in limestone

or marble.

Physical (Mechanical) Weathering

Frost Action: : Water will make its way into a crack in the rock… ADD HERE

Frost Action is responsible for damage done to roadways.

Abrasion: A form of… ADD HEREAn agent of erosion such as gravity, running water, wind and/or glaciers

are responsible for abrasion.

Physical Weathering

“How does abrasion work?”

Sometimes the weathering of rocks can be caused by biologic action.

Living organisms can weather rocks both chemically and physically.

Some organisms will release compounds

through… ADD HERE

The roots of plants will

grow… ADD HERE

Biologic Action

Factors that Impact Weathering Exposure The closer a

rock is to Earth’s surface, the faster it will

weather.

The exposed bedrock along the beach will weather quickly due

to:1. Changes in

temperature. 2. Exposure…

Factors that Impact Weathering

Particle Size and Mineral Composition

Smaller sediments have a larger surface area exposed…

ADD HERE

Some minerals in rocks are… ADD HERE

The minerals that make up this vein of granite are more resistant to weathering than the dark parent rock surrounding it.

Factors that Impact Weathering Climate

Specific types of weathering and its intensity are prone to

certain climates.

PHYSICAL WEATHERING: Prone to… ADD HERE

CHEMICAL WEATHERING: Prone to… ADD HERE

Soil Formation Soil

Sediments that have weathered from rocks become part of the soil.