Erosion & Landforms Review

Emilio's teacher gave the class photos of different landforms to identify. Emilio received a photo of a wide, U-shaped valley. He correctly explained that the valley was formed by:

• a fast-flowing river

• ocean waves

• strong winds

• a glacier

Ellen took a trip with her family to see a beautiful canyon. The canyon contained many interesting and colorful shapes. What most likely formed this canyon?

• River water deposited sediment as it emptied into the ocean.

• River water eroded rock as it flowed through the area.

• Lava from a volcano hardened and cooled to form rock.

• An earthquake caused part of the land to drop to a lower level.

This photo shows a landform. Which of the following is true of this landform?

• It formed as a river emptied into a lake.

• It formed as a glacier eroded the land.

• It formed as wind deposited sand.

• It formed as gravity eroded sediment.

A canyon informed by...

• wind

• water

• ice

Where would you most likely find a delta?

• on a mountaintop

• in a deep valley

• near the mouth of a river

• at the base of a volcano

What is the process that picks up and moves weathered rocks?

• Deposition
• Landslide
• Weathering
• Erosion

Deposition changes the Earth’s surface because bits of broken rock and soil _____.

• stop rivers from flowing.
• make rich farmlands.
• are dropped in new places.
• move very slowly.

Which of the following is NOT a slow change to Earth's surface?

• Weathering
• Erosion
• Deposition
• Landslides

The Mississippi River deposits silt, a material made of soil and rock, at the mouth of the river. Each year the silt deposits enlarge a landmass at the mouth of the river. Which type of landform is being made by the silt deposits?

• Canyon

• Delta

• Dune

• Mountain

What conclusion can be made based on the information given in the table?

• Wind, water, and ice are forces that change Earth’s surface.

• Landforms are the result of the temperature change of water on Earth’s surface.

• Physical changes to Earth’s surface take a long time.

• Earth’s surface is no longer changing because of wind, water, and ice.