Destructive ForcesDestructive Forces

How is our Earth’s surface worn How is our Earth’s surface worn down?down?

What is a destructive What is a destructive force?force?

WeatheringWeathering

Weathering is a _______________ force.

There are two types of weathering: _________ & _________.

WeatheringWeathering

Weathering is a destructive force.

There are two types of weathering: _________ & _________.

WeatheringWeathering

Weathering is a destructive force.

There are two types of weathering: mechanical & chemical.

WeatheringWeathering

______________weathering is the slow breaking apart or wearing away of rock into smaller pieces.

These smaller pieces are known as ______________.

Weathering can be caused by ___________, ________ & __________.

WeatheringWeathering

Mechanical weathering is the slow breaking apart or wearing away of rock into smaller pieces.

These smaller pieces are known as _________________.

Weathering can be caused by __________, _________ & _________.

WeatheringWeathering

Mechanical weathering is the slow breaking apart or wearing away of rock into smaller pieces.

These smaller pieces are known as sediment.

Weathering can be caused by __________, _________ & _________.

WeatheringWeathering

Mechanical weathering is the slow breaking apart or wearing away of rock into smaller pieces.

These smaller pieces are known as sediment.

Weathering can be caused by water, ice & wind.

WeatheringWeathering

______________ weathering when weathered rock in changed into other materials.

_________ is the main factor that causes chemical weathering.

Water can dissolve some ________ in the air and soil to form a ____ ___ water that can dissolve some _______, like limestone.

This is how _________ are formed.

WeatheringWeathering

Chemical weathering when weathered rock in changed into other materials._________ is the main factor that causes chemical weathering.

Water can dissolve some ________ in the air and soil to form a ____ ___ water that can dissolve some _______, like limestone. This is how _________ are formed.

WeatheringWeathering

Chemical weathering when weathered rock in changed into other materials.

Water is the main factor that causes chemical weathering.

Water can dissolve some ________ in the air and soil to form a ____ ___ water that can dissolve some _______, like limestone. This is how _________ are formed.

WeatheringWeathering

Chemical weathering when weathered rock in changed into other materials.

Water is the main factor that causes chemical weathering.

Water can dissolve some chemicals in the air and soil to form a weak acid water that can dissolve some rocks, like limestone.

This is how _________ are formed.

WeatheringWeathering

Chemical weathering when weathered rock in changed into other materials.

Water is the main factor that causes chemical weathering.

Water can dissolve some chemicals in the air and soil to form a weak acid water that can dissolve some rocks, like limestone.

This is how caves are formed.

ErosionErosion

_____ is the carrying away of sediment by moving wind, water, or ice.

ErosionErosion

Erosion is the carrying away of sediment by moving wind, water, or ice.

3Causes

Of Erosion

Water

WaterWater

In rivers and streams, rocks _____ _____ by _____ rub against other rocks.

Over time, _____ _____ break off the rocks.

The rocks are ____ ____ and become ________ and _______.

WaterWater

In rivers and streams, rocks moved along by water rub against other rocks.

Over time, _____ _____ break off the rocks.

The rocks are ____ ____ and become ________ and _______.

WaterWater

In rivers and streams, rocks moved along by water rub against other rocks.

Over time, sharp edges break off the rocks.

The rocks are ____ ____ and become ________ and _______.

WaterWater

In rivers and streams, rocks moved along by water rub against other rocks.

Over time, sharp edges break off the rocks.

The rocks are worn down and become smoother and smaller.

WaterWater

__________ erosion can change shorelines.

Waves can ____ ____ large amounts of ____ and ____.

WaterWater

Ocean-wave erosion can change shorelines.

Waves can ____ ____ large amounts of ____ and ____.

WaterWater

Ocean-wave erosion can change shorelines.

Waves can wash away large amounts of sand and rock.

Water ErosionWater Erosion

Georgia's Providence Georgia's Providence CanyonCanyon

3Causes

Of Erosion

Water Wind

WindWind

Wind can make loose bits of sand and soil ____ or ______ across land.

WindWind

Wind can make loose bits of sand and soil roll or bounce across land.

WindWind

Wind can also cause particles of sand and soil to ___ _______ rocks and _____ ____ small pieces of rock.

In this way, ___ ____ ______ are carved by the wind over time.

WindWind

Wind can also cause particles of sand and soil to rub against rocks and carry away small pieces of rock.

In this way, ___ ____ ______ are carved by the wind over time.

WindWind

Wind can also cause particles of sand and soil to rub against rocks and carry away small pieces of rock.

In this way, new rock shapes are carved by the wind over time.

3Causes

Of Erosion

Water Wind Glaciers

A A ______ is a large mass of slow- is a large mass of slow-moving ice that flows down a slope.moving ice that flows down a slope.

A A glacierglacier is a large mass of slow- is a large mass of slow-moving ice that flows down a slope.moving ice that flows down a slope.

As a glacier moves, it collects ___________ at its ____.

A glacier can ________mountainsides that form ________ valley and canyons.

As a glacier moves, it collects rocks and soil at its base.

A glacier can _______ mountainsides that form ________ valley and canyons.

As a glacier moves, it collects rocks and soil at its base.

Glaciers can carve out mountainsides that form U-shaped valley and canyons.