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Earth's Surface: Landforms
Transcript of Earth's Surface: Landforms
Earth's Surface: Landforms
4th Grade Science
Grade 4--Earth and Space Sciences (ESS)
Topic: Earth's Surface--This topic focuses on the processes that shape and reshape Earth's surfaces.
Content Statement: Earth’s surface has specific characteristics and landforms that can be identified.
Earth’s surface can change due to erosion and
deposition of soil, rock or sediment. Catastrophic
events such as flooding, volcanoes and earthquakes
can create landforms.
Students will learn about various landforms and also how landforms are created through several natural processes.
A canyon is a deep valley with very steep sides -- often carved from the Earth by a river.
A dune is a hill or ridge made of sand. Dunes are shaped by the wind and change all the time.
Be sure to make the Prezi "full screen" for optimal viewing by clicking the box in the lower right hand corner. Then, use the arrows at the bottom of the screen to navigate through the Prezi. Click on the videos and links on each slide to learn more information.
An alluvial fan is a fan-shaped deposit at the end of a fast flowing water source. It shapes the land when sediment is carried through the quick moving water and is deposited at the end of the water source. This sediment both digs out and builds up the land at the end of the water source.
An ocean is a large body of salt water that surrounds a continent. Oceans cover more the two-thirds of the Earth's surface
An Earthquake occurs when plates beneath the ground rub together, creating friction. Earthquakes help create landforms by changing the land through its shaking.
a deep narrow steep-sided valley (especially one formed by running water)
A U-shaped valley or glacial trough is formed by the process of glaciation. It has a characteristic U shape, with steep, straight sides and a flat bottom.
A volcano is a mountainous vent in the Earth's crust. When a volcano erupts, it spews out lava, ashes, and hot gases from deep inside the Earth.
A wetland is an area of land that is often wet; the soil in wetlands are often low in oxygen. Wetland plants are adapted to life in wet soil. There are many types of wetlands, including: swamp, slough, fen, bog, marsh, moor, muskeg, peatland, bottomland, delmarva, mire, wet meadow, riparian, etc.
There are currently no land forms that begin with the letter 'z'! It is your mission to create your own unique landform that begins with the letter Z. See the handout for all of the requirements for your landform!
Be Creative and Good Luck!!!!
A bute is a flat topped rock or hill with steep sides. It looks like a mountain with the point cut off!
Click here to go on a webquest about erosion:
Erosion is the condition in which the earth''s surface is worn away by the action of water and wind.
Floodplains form alongside shallow meandering rivers. As the rivers move back and forth across the landscape they form an area around the river where the elevation of the land is lower than other areas. This lower land around the river is known as a floodplain. During times of excess precipitation, water leaves the banks of the river, but remains confined to the floodplain.
Learn more about floodplains here: http://education.nationalgeographic.com/education/encyclopedia/flood-plain/?ar_a=1
A geyser is a natural hot spring that occasionally sprays water and steam above the ground.
Click to see a video of our nation's most famous gyser erupting: Old Faithful in Yellowstone National Park
Click to see an informational video about the Grand Canyon and how it formed!
A hill is a raised area or mound of land.
An isthmus is a narrow strip of land connecting two larger landmasses. An isthmus has water on two sides.
A lake is a large body of water surrounded by land on all sides. Really huge lakes are often called seas.
Click to listen to a song about the Great Lakes and how they were formed.
A mountain is a very tall high, natural place on Earth - higher than a hill. The tallest mountain on Earth is Mt. Everest.
Mountains are formed by the shifting of plates below the Earth's surface
A peninsula is a body of land that is surrounded by water on three sides. The state of Florida is a peninsula.
A strait is a narrow body of water that connects two larger bodies of water.
A tundra is a cold, treeless area; it is the coldest biome.
Click on the link below to go on a Tundra Webquest!
Click the video to listen to a song about volcanoes!
a keel-shaped crest or ridge of rock, formed by the action of the wind, usually parallel to the prevailing wind direction.
a narrow elongated projecting strip of land. Devil's Tower (left) is an example of a neck, even though some refer to it incorrectly as a butte
a circular rounded projection or protuberance from the Earth
Click the link below to visit a great site to learn about Earthquakes!
a desert-related garden. This is a manmade land form, rather than a natural one.
formed by he sudden melting of glaciers
Click the movie below to watch a video of a jokulhlaup forming!
Become a Mountain expert here: http://www.napanet.net/~lotus72/Fourmnts/
• Alluvial fan: http://hudsonvalleygeologist.blogspot.com/2012/12/martian-conglomerate.html
• Butte: http://en.wikipedia.org/wiki/Butte
• Hill: http://www.elephantjournal.com/2012/12/my-solsbury-hill-revelation-maureen-andrade/
• Isthmus: http://commons.wikimedia.org/wiki/File:Isthmus_example.jpg
• Mountains: http://en.wikipedia.org/wiki/List_of_highest_mountains
• Neck: http://www.destination360.com/north-america/us/wyoming/devils-tower-national-monument
• Peninsula: http://www.eosnap.com/lakes/everglades-and-lakes-on-the-florida-peninsula-usa/
• Strait: http://vimeo.com/12795705
• Yardang: http://en.wikipedia.org/wiki/Yardang
• Xeriscape: http://chandleraz.gov/default.aspx?pageid=687
Definitions and other information