Earth Science

One piece of evidence that supports the Theory of Plate Tectonics is the discovery of what in both South America and Africa?

• The ancient atmosphere in both places was identical.

• The rates of weathering of rock are similar.

• Fossil remains of the same land-dwelling animal.

• Plants on both continents have similar flowers.

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NGSS.MS-ESS2-3

NGSS.MS-LS4-1

The Mid-Atlantic ridge is located at the boundary of two tectonic plates. Which diagram correctly models the relative plate motion on each side of a mid ocean ridge?

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NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

The San Andreas fault is a transform fault. The map below shows a student's approximation of where the fault line crosses through the United States. Students were asked to make maps predicting which way land would most likely move over thousands of years. Which map best predicts the likely movement of land along the fault line over thousands of years?

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NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

One piece of evidence that supports the Theory of Plate Tectonics is found in the observation of rocks on either side of the Mid-Atlantic Ridge, shown in the picture provided. Plate Tectonic theory is supported because as you move out form the Mid-Atlantic Ridge, the rocks -

• have higher iron content.

• become thicker and thicker.

• are increasingly older.

• are made of smaller particles.

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NGSS.MS-ESS2-3

Which statement best describes the geologic process that is most likely responsible for the formation of mountains?

• They are along a transform plate boundary that is no longer active, so erosion is creating deep valleys.

• They are along a transform plate boundary in which plates are currently moving side by side, causing earthquakes and faults

• They are along a plate boundary in which plates are currently converging, causing uplift and steep slopes.

• They are along a plate boundary in which plates diverged in the distance past, allowing new rock to build up.

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NGSS.HS-ESS2-1

The diagram shows a model of the movement of two tectonic plates. When the plates collide, one plate often moves below the other plate. The rising magma that can result from this type of plate movement may produce-

• fossil layers

• volcanic islands

• deep-sea sediment

• seafloor spreading

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NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

______________ crust is more dense and it will _____________ at a convergent boundary.

• Continental; sink
• Oceanic; rise
• Oceanic; sink

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NGSS.MS-ESS2-3

Which of the following causes Earth's tectonic plates to move?

• Energy from the Sun
• Magnetic Pole Reversal
• Convection currents in the mantle
• Faults in Mountain Ranges

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NGSS.MS-ESS2-3

What type of event will occur at this boundary?

• Earthquake
• Volcano Eruption
• Tornado
• Mountain Building

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NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

A satellite image of an area in Florida shows a river with slight bends along its length. A second satellite image taken of the same area 10 years later shows the same river with  a different course. What is the best explanation for the difference in the shape of the river's course between the two satellite images?

• Wind blew waves across the water surface, eroding away the bank on one side of the river until the river's course changed its shape
• Regular freezing and thawing of the river split the soil along the river banks, changing the shape of the river
• Water eroded the banks of the river and deposited the eroded soil on opposite banks, causing the river to form tighter bends
• Acid rain chemically weathered the banks along the river, forcing the river to wind back and forth

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NGSS.MS-ESS2-2