Earth's surface-5th grade

If erosion is the only force acting on a mountain, what happens to its size? It becomes…

• steeper

• softer

• smaller

• larger

Landscape Arch in Arches National Park had to be closed to visitors hiking near the base. How could an arch become dangerous?

• Erosion could make it possible for it to collapse.

• Ice could fall off of it, harming the visitors.

• Snakes are attracted to some arches.

• The soil around the arch became polluted.

A seismograph is a device used to measure wave movement through Earth’s crust. What can it help predict?

• floods and hurricanes

• earthquakes and volcanoes

• snowstorms and avalanches

• drought and rainfall

Many valleys in Northern Utah show a U-shape which indicated a glacier carved them. How long does a glacier take to carve a valley?

• less than 1 year

• 10-20 years

• 100 years or more

• 1,000 years or more

How do volcanoes, earthquakes, and uplift affect Earth’s surfaces?

• Create deep ocean basins

• Create plains of rich soil

• Create mountains and valleys

• Create arctic ice caps

The Grand Canyon is a result of two forces. What are they?

• weathering and earthquakes

• weathering and erosion

• erosion and uplift

• earthquakes and volcanoes

Hot rock deep in Earth expands and is forced out the opening of a volcano. As the rock cools, it may form which of the following?

• Mountains

• Glaciers

• Rivers

• Mesas

How long has it taken the Grand Canyon to form?

• 100 years

• 1,000 years

• 2,000 years

• 5,000 years

Which of the follow forms mountains and valleys?

• gravity

• weathering

• flooding

• earthquakes

What causes earthquakes, volcanoes, and uplift of Earth’s surfaces?

• Pull of gravity from the moon.

• Movement of the Earth’s crust.

• Explosions deep in Earth’s core.

• New rocks forming on Earth’s surface.