Landforms
What is a landform?
A natural shape or feature found on Earth's surface.
How was the Himalayas formed?
Was formed when two plates were pushed against each other.
Where are delta's formed?
At the mouth of a river.
Give one or more examples of mountains.
Mount Everest (Himalayas, Nepal/China), Mount Fuji (Honshu Island, Japan), Mount Olympus (Olympus Range, Greece), etc.
How long can it take for landforms to "form"?
It can happen over millions of years, but some can happen in minutes.
How are "U-shaped" valleys formed?
By melted glaciers.
What are plains?
They are large and flat lands, that don't have any highlands or deep valleys.
Give one or more examples of valleys and canyons.
Valleys: Central Valley (US), Great Appalachian Valley (Canada), etc.
Canyons: The Grand Canyon (US), Colca Canyon (Peru), etc.
How do landforms "form"?
Erosion
How are canyons formed?
Rivers typically deepen and widen as they erode, but some rocks are resistant to widening so the valley gets deeper.
True of False: Delta's aren't very fertile land.
False; they are very fertile lands.
Give one or more examples of plaines.
Grassland prairie in Kansas, Great Plains (Canada & US), Lake Superior Lowland (Wisconsin, US), etc.
The wearing away of land by forces such as wind, water, and ice.
What's another term for canyons?
V-shaped valleys.
Why are dunes important?
They protect the inlands from big waves and more erosion.
Give one or more examples of deltas.
The Mississippi Delta (Louisiana, US), The Nile (Egypt), Amazon Delta (Northern South America), etc.
How does erosion work to shape different landforms?
Running water is the most common way, but other factors such as wind and gravity help form landforms as well.
How was the Grand Canyon formed (explain in depth how canyons are formed in general)?
It was formed by rivers; rivers typically deepen and widen as they erode, but some rocks are resistant to widening so the valley gets deeper.
How are delta's formed?
Rivers carry sand and sediment; when the water reaches the mouth of the river, it slows down and deposits all the sediment it was carrying.
Give one or more examples of dunes.
Dune 7 (Namib Desert, Namibia), Star Dune (Great Sand Dunes National Park and Reserve, Colorado), Mt. Tempest (Moreton Island, Australia), etc.