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The Dynamic Earth

Authored by JENNA POWELL

Science

9th Grade

NGSS covered

Used 2+ times

The Dynamic Earth
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55 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Many early mapmakers thought Earth’s continents had moved based on...

Fossil evidence

Matching coastlines

Climatic data

Plate boundary locations

Tags

NGSS.MS-ESS2-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Continental drift was not widely accepted when it was first proposed because ____________.

the continents were too big to move across Earth's crust.

Wegner couldn't explain why or how the continents had moved.

there wasn't enough convection in Earth's mantle.

data gathered by new instruments proved the theory incorrect.

Tags

NGSS.HS-ESS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Compared to ocean crust near deep-sea trenches, crust near ocean ridges is ____________.

magnetically reversed.

older.

younger.

the same age.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The magnetic pattern of ocean-floor rocks on one side of an ocean ridge is ____________.

different than rocks on land.

at a right angle to the ocean ridge.

a mirror image of the other side.

younger than the other side.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The magnetic pattern on the seafloor is

a. a mirror image of that of the other side.

b. at right angles to the ocean ridge.

c. much different from the magnetic pattern found in rocks on land.

d. younger than on the other side.

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ischron maps of the seafloor indicate that ocean crust is

a. Oldest near ocean ridges

b. Thinnest in subduction zones

c. Youngest near ocean ridges

d. Youngest at deep-sea trenches

Tags

NGSS.MS-ESS2-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Each cycle of spreading and intrusion of magma during seafloor spreading results in

plates colliding

new ocean crust

subduction

magnetic reversal

Tags

NGSS.MS-ESS2-3

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