Earth Materials Stemscopedia Lesson

Which of the following can change the surface of Earth by turning v-shaped valleys into u-shaped valleys and carrying large boulders long distances?

• glaciers

• rivers

• sand dunes

• wind storms

Tags

NGSS.MS-ESS2-2

Stalagmites are structures found on the floors of caves and are made of mineral deposits. Stalagmites provide evidence for how moving water can change Earth materials because stalagmites –

• grow upward, while stalactites grow downward from the ceiling.

• are sometimes found in or near pools of water underground.

• may be small and delicate or very tall and massive

• form where water containing dissolved minerals constantly drips.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which observations about the Rocky Mountains and the Appalachian Mountains would support the claim that exposure to weathering and erosion over time can change land forms?

• The Appalachian Mountains are found in the eastern United States and the Rocky Mountains are found near the west coast.

• The shorter and more rounded Appalachian Mountains are more than four times older than the taller and more jagged Rocky Mountains.

• The length of the Appalachian chain is approximately 2,400 kilometers, and the Rocky Mountain chain is about twice as long.

• The Appalachian Mountains are composed mostly of sedimentary rocks while the Rocky Mountains also contain other rock types.

Tags

NGSS.MS-ESS2-2

What is the agent of erosion and transportation responsible for

the creation of deltas?

• ice

• wind

• water

• gravity

Tags

NGSS.MS-ESS2-4

The rate of erosion would increase if the:

• Average Rainfall increased

• Wind speed decreased

• Slope of the land decrease

• Vegetation cover increased