Earth Through Time

How did the evidence of identical fossils found on separate continents contribute to the modern theory of how the continents resulted in their current shapes?

• by showing that the cooling of Earth helped produce continents

• by suggesting that liquid rock in the mantle solidifies in the continental crust

• by showing that biological evolution is similar on separate continents

• by suggesting that forces have caused continents to separate over time.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which of the following observations best supports Alfred Wegener's theory of continental drift?

• identical fossils are found along the coastal region of Africa and South America.

• Similar animal species are found in Asia and North America.

• Patterns of the major oceanic currents stay consistent from year to year.

• Changes in Earth's magnetic field have been documented in ocean floor rocks.

Tags

NGSS.MS-ESS2-3

Which of these features of Earth's crust are caused by the shifting of tectonic plates?

• continental shelves

• U-shaped valleys

• mid-ocean ridges

• desert sand dunes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which piece of evidence supports plate tectonic theory?

• rocks with different physical appearances

• new crust formed by seafloor spreading

• the weathering and erosion if coastlines

• plant fossils that are similar in size

Tags

NGSS.MS-ESS2-3

How does climate effect this theory?

• Antarctica's climate today is too cold to support the Glossopteris fern. It must have been much warmer before. With Pangea, Antarctica must have been closer to the equator.

• It does not effect anything.

• The fern must have thrived in colder climates.

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-7

NGSS.HS-LS4-5

How many millions of years ago were the earliest known reptiles?

• 300

• 200

• 100

• 50

Tags

NGSS.MS-ESS1-4

How many millions of years ago were the earliest known flowering plants?

• 300

• 275

• 125

• 50

Tags

NGSS.MS-LS4-1

What is the geologic time scale used for?

• To show relative dating

• To show the fossil record

• to organize Earth's long history into manageable parts

• to organize Earth's long history into larger parts

Tags

NGSS.MS-ESS1-4

Sedimentary rocks are made from:

• sediments being compressed

• magma being compressed

• Sediments being broken apart

• Magma being broken apart

In reference to rocks the ______ layer is at the bottom and the ________ layer is at the top.

• youngest, oldest

• oldest, youngest

• thinner, thicker

• thicker, thinner

Tags

NGSS.MS-ESS1-4