
Landforms
Presentation
•
Mathematics
•
4th Grade
•
Medium
+7
Standards-aligned
Katie Wilson
Used 115+ times
FREE Resource
10 Slides • 9 Questions
1
Landforms are natural structures found on Earth's surface. They often take thousands of years to change through slow processes such as weathering, erosion, and deposition. Some can change more quickly due to earthquakes, volcanoes, and avalanches.
2
Valleys can be shaped like a "U" or a "V" and may be found in between mountains. Valleys are formed by glaciers, rivers, and streams.
Valleys
3
4
Multiple Choice
A wide, round-bottom valley is shown. This valley was most likely formed by which of the following?
tornadoes
glacial movement
flash flooding
deposition by the wind
5
Multiple Choice
Read the characteristics of the valley. What was it most likely formed by?
a slow moving glacier
thunderstorms
heavy winds
moving water
6
Multiple Choice
The diagram shows a V-shaped valley. The valley did not exist thousands of years ago. How was this valley formed?
sediment being deposited by slow-moving water
riverbanks being eroded by fast-moving water
earthquakes causing the ground to split open
glaciers moving sediment to a new location
7
When a river deposits the sediments that have been flowing in it at the mouth of a river, a delta forms. Deltas are shaped like a triangle with sediments gathered at the end of a river. Deltas get many of the sediments from weathered rocks along a river.
Deltas are also made by water erosion.
8
9
Multiple Choice
Which model best represents the formation of a delta?
A student carefully placed pieces of gravel in a hill.
A student sets up a tray of sand and blows through a strat to form a hill of sand.
A student pours water into a stream table filled with dirt and observes sediments getting deposited at the end of the table in a triangular shape.
A student packs damp sand in a tray then scrapes a large ice cube along the bottom.
10
Multiple Choice
A diagram of a delta is shown. Which process best describes the formation of this delta?
The erosion of sediments in the ocean.
The weathering of rocks by glaciers.
The deposition of sediments carried by the ocean.
The deposition of sediments carried by the river.
11
Multiple Choice
A photograph of a river delta is shown. Which statement correctly describes the delta in the photograph?
Deposition is causing the delta to become narrower over time.
Deposition is causing the delta to become bigger over time.
Erosion is causing the delta to become smaller over time.
Erosion is causing the delta to become wider over time.
12
Canyons are often created by rivers that slowly weather rocks and erode the sediments. Canyons have steep sides with a narrow channel on each side of a river.
Canyons
13
14
Multiple Choice
While on a field trip, students observed a canyon
and wrote this list of observations.
This canyon was most likely formed by –
flooding
wind
massive glaciers
volcanic activity
15
Multiple Choice
A canyon with tall, vertical sides is shown. Which of the following most likely led to the formation of this canyon?
rapidly moving water
hurricane
burrowing animals
volcanic activity
16
Sand dunes are usually formed on beaches and in deserts due to wind erosion. They are hills of sand.
17
18
Multiple Choice
While on a field trip, students observed sand dunes and wrote this list of
observations.
This sand dune was most likely formed by –
flooding
wind
massive glaciers
volcanic activity
19
Although noticeable changes often take
thousands of years, landforms are constantly
being formed all around us.
Landforms are natural structures found on Earth's surface. They often take thousands of years to change through slow processes such as weathering, erosion, and deposition. Some can change more quickly due to earthquakes, volcanoes, and avalanches.
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