Exploring Landforms: The Shape of Our Earth! 🌍
Hello Earth Explorers! 🌎
Today in science class, we will learn all about landforms — the natural shapes and features we see on Earth’s surface.
Landform: natural
feature of the Earth's surface, such as a mountain, a valley, a river, an
island, a coast, a cliff, a snow-capped mountain, etc.
Landforms
can be modified over time by the action of earthquakes, volcanic eruptions, water, wind, gravity and humans. This process
is known as erosion.
Deltas:
The term
"delta" refers to a geographical formation that occurs at the mouth
of a river. The water current deposits sediments accumulated during its course.
These sediments form a fan or a series of arms of land that extend towards the sea.
Canyons:
Canyons are formed through an erosion process that lasts millions of years. In this process, water, wind and other natural elements wear away rocks and sediments, shaping the deep crevices and steep walls that characterize the canyons.
Dunes:
Dunes are formed when the wind transports sand grains and deposits them in a place where it accumulates. The wind blows the grains of sand from the top of the dunes. The grains of sand fall somewhere else and form another dune.
A "glacier
valley" is a valley that has been carved out by a big, slow-moving river
of ice called a glacier, making
it look like a big "U" shape.
Deltas are formed by
erosion and deposition.
Canyons are formed by
weathering and erosion. NO DEPOSITION.
Dunes are caused by
erosion and deposition.
Glaciers are caused by
weathering and erosion.
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