LockeD! - 5.7B - Earth's Slow Changes #1

A student placed some clean rocks in a clear plastic jar. The jar was filled with clean water and covered with a lid. Then the student shook the jar for five minutes. The student noted that smaller pieces had broken off some of the rocks and that there was a fine grit on the bottom of the jar. Which change of Earth’s surface was the student modeling?

• Physical weathering

• Chemical weathering

• Erosion of sediments

• Forming deltas

Tags

NGSS.MS-ESS2-2

Which experiment would best show how different methods of plowing fields on a hill affect erosion?

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The prairie is ideal for the growth of grasses because it has rich topsoil. All of these processes help form topsoil EXCEPT —

• decay of trees

• weathering of rocks

• erosion of hills

• movement of oceans

Which of these can cause sharp, rough mountains to become rounded and smooth over time?

• Wind and rain

• The sun’s rays

• Light and darkness

• Earth’s magnetic field

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

The Davis Mountains in West Texas used to be taller than they are now. Which of the following conditions most likely caused the mountains to become shorter over time?

• Heat and pressure

• Soil deposition

• Rain and wind

• River formation

Tags

NGSS.MS-ESS2-2

Which of the following is an example of erosion?

• Wind blowing across a field and picking up dust and small rocks

• Sediment falling to the bottom of a lake or ocean

• The breaking up of rocks due to the effects of freezing water

• The formation of stalactites in underground caves

Tags

NGSS.MS-ESS2-2

Which of the following is a constructive force that changes the surface of the Earth slowly over time?

• Deposition

• Earthquakes

• Tidal waves

• Weathering

Tags

NGSS.MS-ESS2-2

What two forces are the main agents of erosion?

• Deposition and weathering

• Gravity and evaporation

• Precipitation and gravity

• Moving wind and moving water

Which of the following would be an environmentally correct way to prevent soil erosion?

• Cut down a large number of trees

• Plow bare ground into straight rows

• Plant grass on bare ground

• Replace flower beds with a concrete sidewalk

Tags

NGSS.MS-LS2-5

Which conclusion is best supported by the diagram?

• Plants help prevent erosion.

• Rain is the most common cause of weathering

• Hillsides support the most plant growth

• Bare soil slows flowing water

Tags

NGSS.MS-ESS2-2