Weathering and Erosion

How does wind weather rocks?

• It moves the rocks to a new place.

• It rolls the rocks along the ground.

• It dissolves the rocks to form sediment.

• It slams sediments into larger rocks.

The amount of rainfall in the U.S. varies from region to region. Which of these regions receives the most rainfall in a year?

• the Central Plains

• the Pacific Northwest

• the Eastern United States

• the Southwestern United States

Rainfall affects the types of living things found in a region. Which of these living things are common in the Pacific Northwest?

• cacti and iguanas

• bison and grasses

• evergreens and birds

• deciduous trees and penguins

Which of the following is true of desert plants?

• They need a lot of water to survive.

• They grow very tall in one season.

• They are mostly deciduous trees.

• They can survive with little water.

Which statement is true of a central plains grassland?

• Most animals there have scaly skin.

• Many plants can regrow there after a fire.

• Very few plants or animals can survive there.

• The high rainfall there supports many tall trees.

What type of landform can form when water weathers and erodes layers of rocks?

• fossils

• canyons

• sand dunes

• mid-ocean ridges

WHich can form when wind deposits sediment?

• a landslide

• a sand dune

• a U-shaped valley

• a V-shaped canyon

Sarah put 4 small rocks into a jar of water. She shook the jar very hard for several minutes. When she looked at the jar, she saw the 4 rocks plus little pieces of sand in the water. What can she conclude from her observations?

• water can form rocks

• water can melt rocks

• water can weather rocks

• water can harden rocks

Which Earth processes cause a sand dune to form?

• deposition and rifting

• faulting and landslides

• erosion and deposition

• weathering and volcanism

The breading down of substances such as rocks and minerals is ...

• weathering

• erosion

• deposition