Modified Landforms

Which of these landforms is created by water deposition?

• Canyon

• Sand Dune

• Beach

How does a sharp and pointed mountain become a smooth and rounded hill?

• Weathering

• Deposition

• Earthquake

Which of these is formed by a glacier moving slowly across land?

• Earthquake

• Hill

• U-Shaped Valley

How is a canyon formed?

• Wind blows sediments away.

• A river moves sediments away.

• A river drops all the sediments there.

How does a delta form?

• a river slowing down

• it's just a river that empties into an ocean or lake

• the current of the river slows down causing sediment to deposit

How does a valley form?

• by a river flowing in between mountains

• it just appears

• by mountains separating

Students used a fan to blow piles of sand. This best models which of the following natural processes that create changes to the land?

• A. Weathering of rocks to make soil

• B. Deposition of sediments to form deltas

• C. Formation and movement of dunes

A river flowing across the rocky surface of the Earth could create which of the following?

• A. Dunes

• B. Mountains

• C. Canyon

Rocks that are carried in a quickly moving river for a long time are most likely to be -

• A. long and thin

• B. large and flat

• C. smooth and rounded

How could students best model the formation and movement of dunes?

• A. Pour water over piles of sand.

• B. Slowly drip wet sand into a tub of water.

• C. Use straws and blow piles of sand.