Transcript Landforms Produced by Water

Landforms Produced by
Water
 What adjectives would you use to
describe water?
Landforms Produced by
Water
 What adjectives would you use to
describe water?
 Water is responsible for most of
the landforms found on the Earth’s
crust.
Landforms Produced by
Water
 What adjectives would you use to
describe water?
 Water is responsible for most of
the landforms found on the Earth’s
crust.
 Some of these landforms are the result of erosion.
Landforms Produced by
Water
 What adjectives would you use to
describe water?
 Water is responsible for most of
the landforms found on the Earth’s
crust.
 Some of these landforms are the result of erosion.
 Other landforms form as water deposits the sediment it
is eroding.
Landforms Produced by
Water
 What adjectives would you use to
describe water?
 Water is responsible for most of
the landforms found on the Earth’s
crust.
 Some of these landforms are the result of erosion.
 Other landforms form as water deposits the sediment it
is eroding.
 Some of the landforms created by water are the results
of rivers, streams, and the water the flows under the
ground.
Landforms Produced by Water
Rivers
 Streams and rivers form when water flows along the
same path time and time again.
Landforms Produced by Water
Rivers
 Streams and rivers form when water flows along the
same path time and time again.
 As the water moves, it erodes the underlying land to
form a channel, or valley.
Landforms Produced by Water
Rivers
 Streams and rivers form when water flows along the
same path time and time again.
 As the water moves, it erodes the underlying land to
form a channel, or valley.
 The valley of a young river is very steep and is
shaped like a capital V when viewed from the side.
Landforms Produced by Water
Rivers
 Streams and rivers form when water flows along the
same path time and time again.
 As the water moves, it erodes the underlying land to
form a channel, or valley.
 The valley of a young river is very steep and is
shaped like a capital V when viewed from the side.
 Because water flows very
quickly through young river
valleys, it causes much erosion.
Landforms Produced by Water
Rivers
 As a river matures, its valley widens.
Landforms Produced by Water
Rivers
 As a river matures, its valley widens.
 At this stage, the flow of the water is more from side
to side than it was when the river was younger.
Landforms Produced by Water
Rivers
 As a river matures, its valley widens.
 At this stage, the flow of the water is more from side
to side than it was when the river was younger.
 This sideways movement causes a large, flat area
called a floodplain to form on each side of the river’s
channel.
Landforms Produced by Water
Rivers
 Floodplains are often marred with curves or bends in
the river that are called meanders.
Landforms Produced by Water
Rivers
 Floodplains are often marred with curves or bends in
the river that are called meanders.
 When a meander becomes totally cut off from the
rest of the river, a landform called an oxbow lake
forms.
Landforms Produced by Water
Rivers
 Often, long mound-like
deposits of sand or
gravel called bars form
parallels to the flow of
the water in a river
channel.
Landforms Produced by Water
Rivers
 Often, long mound-like
deposits of sand or
gravel called bars form
parallels to the flow of
the water in a river
channel.
 Crescent-shaped bars often form on the inside of a
mature river bend.
Landforms Produced by Water
Rivers
 As rivers or streams empty into large bodies of
water, a fan-shaped deposit called a delta often
forms.
Landforms Produced by Water
Rivers
 As rivers or streams empty into large bodies of
water, a fan-shaped deposit called a delta often
forms.
 The coarse sediment grains drop close to the river’s
mouth.
Landforms Produced by Water
Rivers
 As rivers or streams empty into large bodies of
water, a fan-shaped deposit called a delta often
forms.
 The coarse sediment grains drop close to the river’s
mouth.
 The finer sediments drop
farther from the mouth.
Landforms Produced by Water
Rivers
 Rivers that flow down mountain
sides deposit sediment when
the water reaches a broad, flat
area.
Landforms Produced by Water
Rivers
 Rivers that flow down mountain
sides deposit sediment when
the water reaches a broad, flat
area.
 Like deltas, these deposits are
shaped like fans, but are called alluvial fans.
Landforms Produced by Water
Rivers
 Any water that is beneath Earth’s
surface is called groundwater.
Landforms Produced by Water
Rivers
 Any water that is beneath Earth’s
surface is called groundwater.
 Some groundwater is trapped in
the pore spaces within rocks.
Landforms Produced by Water
Rivers
 Any water that is beneath Earth’s
surface is called groundwater.
 Some groundwater is trapped in
the pore spaces within rocks.
 Some of this water even flows like underground
rivers.
Landforms Produced by Water
Rivers
 Any water that is beneath Earth’s
surface is called groundwater.
 Some groundwater is trapped in
the pore spaces within rocks.
 Some of this water even flows like underground
rivers.
 At times groundwater dissolves rocks to form huge
holes called cavers, or caves.
Landforms Produced by Water
Rivers
 Any water that is beneath Earth’s
surface is called groundwater.
 Some groundwater is trapped in
the pore spaces within rocks.
 Some of this water even flows like underground
rivers.
 At times groundwater dissolves rocks to form huge
holes called cavers, or caves.
 Some caves are only a meter or so long and high.
Landforms Produced by Water
Ocean Waves and Currents
 Rivers and streams are not the
only moving water the produces
landforms.
Landforms Produced by Water
Ocean Waves and Currents
 Rivers and streams are not the
only moving water the produces
landforms.
 Ocean waves and currents
constantly shape and reshape a
shoreline.
Landforms Produced by Water
Ocean Waves and Currents
 Rivers and streams are not the
only moving water the produces
landforms.
 Ocean waves and currents
constantly shape and reshape a
shoreline.
 Waves along a rocky coast, for example, erode rocks
to form nearly vertical landforms called sea cliffs.
Landforms Produced by Water
Ocean Waves and Currents
 Rivers and streams are not the
only moving water the produces
landforms.
 Ocean waves and currents
constantly shape and reshape a
shoreline.
 Waves along a rocky coast, for example, erode rocks
to form nearly vertical landforms called sea cliffs.
 Sea cliffs are often eroded to form flat, horizontal
surfaces called platforms.
Landforms Produced by Water
Ocean Waves and Currents
 When waves erode some
rocks along a coast but not
others sea caves form.
Landforms Produced by Water
Ocean Waves and Currents
 When waves erode some
rocks along a coast but not
others sea caves form.
 If sea caves are eroded from
both sides, sea arches are
created.
Landforms Produced by Water
Ocean Waves and Currents
 When waves erode some
rocks along a coast but not
others sea caves form.
 If sea caves are eroded from
both sides, sea arches are
created.
 Sea arches eventually collapse as waves pound
against them.
Landforms Produced by Water
Ocean Waves and Currents
 When waves erode some
rocks along a coast but not
others sea caves form.
 If sea caves are eroded from
both sides, sea arches are
created.
 Sea arches eventually collapse as waves pound
against them.
 The rock towers left behind are known as sea stacks.
Landforms Produced by Water
Ocean Waves and Currents
 Waves also create and destroy beaches.
Landforms Produced by Water
Ocean Waves and Currents
 Waves also create and destroy beaches.
 Waves that crash on shore constantly move sand
along the beach.
Landforms Produced by Water
Ocean Waves and Currents
 Waves also create and destroy beaches.
 Waves that crash on shore constantly move sand
along the beach.
 During winter, large waves take sand away from the
beach, causing the beach to
shrink.
Landforms Produced by Water
Ocean Waves and Currents
 Waves also create and destroy beaches.
 Waves that crash on shore constantly move sand
along the beach.
 During winter, large waves take sand away from the
beach, causing the beach to
shrink.
 The beach grows larger during
the summer months when
smaller waves add sand back
to the beach.
Landforms Produced by Water
Ocean Waves and Currents
 Waves and currents flow onshore and erode or
deposit sediment to change a coastline, producing
various types of landforms.
Landforms Produced by Water
Ocean Waves and Currents
 Waves and currents flow onshore and erode or
deposit sediment to change a coastline, producing
various types of landforms.
 Spits are long ridges of sand that extend outward
from a shore into the ocean.
Landforms Produced by Water
Ocean Waves and Currents
 Waves and currents flow onshore and erode or
deposit sediment to change a coastline, producing
various types of landforms.
 Spits are long ridges of sand that extend outward
from a shore into the ocean.
 Barrier islands, such as those
along much of the eastern
shoreline of the United States,
are deposits of sand that form
parallel to the coast.
Scripture
Spotlight
What does Isaiah 48:17-19 say about waves?
Scripture
Spotlight
What does Isaiah 48:17-19 say about waves?
Isaiah 48:17-19 includes the thought that if God’s
people had paid attention to His word, they would
have had peace like a river and righteousness like the
waves of the sea.