Download landforms!!!!!!!

LANDFORMS!!!!!!!
By Mrs. Preston’s 5th grade class.
(produced by Lena and Eden )
Landforms 
• A landform is a natural formation of rock and
dirt, forming on Earth.
• A landform is a natural feature of a land
surface.
Delta
A delta is an area of sediment at the mouth of a
river where the river diverges into several
outlets before entering a larger body of water.
Deltas are often triangular in shape.
River deltas are created when sediment carried
by a river is deposited at the mouth of the river
(deposition). This deposition happens over a
long period of time while the river flows into an
ocean, sea, estuary, lake, or reservoir.
Peninsulas
A peninsula is a piece of land that has water
surrounding it on 3 sides. The other side is
connected to mainland.
Peninsulas are created by waves hitting a piece of
rock on the coastline that is harder to erode. Over
time the land will erode, leaving the rock behind.
Valley
A valley is a low area of land between hills or
mountains typically with a river or stream
flowing through it.
Valleys are formed when water or ice causes
erosion over time. They are also made by
glaciers and movement of the earth’s crust.
Islands
An Island is a landmass that is completely
surrounded by bodies of water.
Islands are formed in many ways: They can be
formed when erosion causes the separation of 2
landmasses, and when sea level rises. They can
also be formed when lava from an underwater
volcano is built up above water, and by the
growth of coral reefs.
Plains
Plains are almost flat stretches of land with no
significant changes of elevation.
Plains are made when glaciers or streams erode
elevated land. Others occur where flowing lava
spread.
Mountains
A mountain is a large and abrupt natural elevation of
the earth’s surface rising suddenly from the
surrounding level.
Mountains are formed by slow but gigantic
movements of the earth’s crust (the outer layer of
the earth) called plate tectonics, which causes plates
underneath the surface of the earth to move upward.
Glacier
Glaciers are huge moving sheets of ice
that form on mountains or near the
poles.
Glaciers are formed by huge masses of ice that
freeze together. When more snow falls that
melts, the snow builds up and turns to ice.
Volcano
A volcano is a mountain or hill formed around a crack
in the earths crust through which lava, rock fragments,
hot vapor, and gas are or have erupted.
A volcano is made when an earthquake pushes up
land. Then, magma is pushed up into the hill forming
a magma chamber.
Plateau
A plateau is a large raised area of land
with a flatter top.
Plateaus are formed over millions of years. One way is when magma
pushes up towards the surface of the Earth’s crust. If the magma does not
break through but rises a section of the crust and creates a plateau.
Another way plateaus are formed is when lava breaks through the Earth’s
crust and builds on itself over and over to form a raised area of land.
Plateaus are also created by erosion from glaciers and water wearing down
a mountain or hill.
Canyons
A Canyon is a deep cut or gorge in
the Earth, typically with a river at
the bottom.
Canyons are made by erosion
(wind and/or water).
The End
Thank you for watching
our presentation on
different Landforms.
We hope you enjoyed it!