TEST: Plate Tectonics

The fossil plant Glossopteris has been found in Africa, Australia, India, South America, and Antarctica. What claim is supported by this evidence?

• Fossils can be found on nearly every continent in the world.

• The continents were once completely covered by ice and snow.

• The continents have moved apart from one another over time.

• Plants can travel across oceans to grow on other continents.

Tags

TEKS.SCI.7.10A

Which statement describes fossil evidence that supports the idea that Earth has changed over time?

• Fossils of a variety of species are found on a continent.

• Many fossils look similar and can be found in rocks.

• Fossils from the same species can be found on multiple continents.

• Many fossils of related animals are found in the same area.

Tags

TEKS.SCI.7.10A

What information found on the map provides evidence for plate tectonics? Choose three.

• All of the fossils on the map represent animals that were strictly terrestrial.

• Only the fern could survive in southern locations because of heat.

• The fossil evidence proves the animals had the ability to fly.

• The fossils match up where the continents have been separated by water.

• The coastlines of the continents fit together like puzzle pieces.

Tags

TEKS.SCI.7.10A

Classify each statement as Supports Plate Tectonics or Does NOT Support Plate Tectonics.

Groups:

(a) Supports plate tectonics

,

(b) Does not support plate tectonics

• Historical climate maps show the

  climates of Antarctica and Northern

  Africa were once the same.

• All volcanoes that occur over a

  hotspot are not associated with

  plate boundaries.

• crust found near

  the coast of Africa is older than

  the crust found near the

  mid-Atlantic ridge.

• When mapped, the majority of

  earthquakes around the world

  are located at a plate boundary.

• All rocks located on the floor of

  the Atlantic Ocean are younger

  than 180 million years.

• Rocks made of basalt, which all

  formed at the same time, point

  to the same magnetic north.

Tags

TEKS.SCI.7.10A

Consider the diagram of seafloor spreading at a mid-ocean ridge. Which statement correctly describes the diagram?

• Band A is older than band C.

• Band B is younger than band D.

• Band C is younger than band A.

• Band D is older than band E.

Tags

TEKS.SCI.7.10A

Which statement is best supported by the diagram?

• Band A is closer to seafloor spreading, so it is older than band C.

• Band B is closer to seafloor spreading, so it is younger than band D.

• Band C is closer to band E, so it is younger than band A.

• Band D is farther from continental crust, so it is older than band E.

Tags

TEKS.SCI.7.10A

Three different types of tectonic plate boundaries are shown below. Match these diagrams to their descriptions.

• Magma rises between 2 plates and cools.

• 
• Earthquakes result from stress here.

• 
• Mountain ranges are created by collision

• 

Tags

TEKS.SCI.7.10B

When two tectonic plates move past each other without converging or diverging, what is most likely to occur?

• A volcanic eruption

• A mountain formation

• A typhoon

• An earthquake

Tags

TEKS.SCI.7.10B

The mid-Atlantic ridge is a mostly underwater mountain range located in the Atlantic Ocean. Scientists have made some amazing discoveries near the mid-Atlantic ridge which led to understanding how it was formed. Place the series of events in the correct order below.

• The ridge where the North American and Eurasian plates meet diverged, moving away from

  each other.

• Oceanic crust was pushed further from the ridge and closer to the continental crust.

• Magma hardened and formed new crust along the edges of the plates.

• Molten rock arose from the magma and filled the gap between the plates.

Tags

TEKS.SCI.7.10B

The diagram shows the formation of an ocean basin due to plate tectonics. Which statement describes how plate tectonics causes ocean basin formation?

• Magma pushes plates upward and fills the center of the ocean floor.

• Heat causes plates to move apart, allowing magma to rise and solidify.

• Continental crust subducts and magma fills trenches.

• Continental crust moves apart at trenches exposing magma.

Tags

TEKS.SCI.7.10B