Science Quiz

Scientists predict that the Rocky Mountains gradually will become shorter and rounder over many, many years. Why would this happen?

• Volcanoes would deposit lava around the mountains.

• Earthquakes would move the mountains.

• Air, water, gravity, and changes in temperature would break down the rocks that form the mountains.

• Glaciers would roll over the mountains, making them smoother.

What do ice, wind, and moving water all have in common?

• All are found everywhere on Earth.

• All work to keep Earth the same.

• All work to make Earth larger.

• All are agents that change Earth’s surface.

Which process begins the breaking down of rocks?

• Weathering

• Erosion

• Deposition

Which landform was most likely made by the process of deposition?

• Arch

• Cliff

• Cave

Which processes are responsible for forming a delta? Select two correct answers.

• Weathering

• Erosion

• Deposition

• Decomposition

Most canyons are the result of erosion caused by a/an—

• river

• volcano

• hurricane

• earthquake

Which of the following is LEAST responsible for the weathering of rocks?

• freezing

• plant growth

• lightning

• rain

Explain how a dune is a mobile (moveable) landform.

This U-shaped valley was most likely formed by what agent of erosion?

• Wind

• Water

• Ice

• Rain

This V-shaped canyon was most likely formed by —

• Glaciers

• Blowing Sand

• Heavy Snow

• A Flowing River