Earth Changes over time

Multiple Choice

Which of the following terms is most closely related to the movement of Earth's continents over time?

• supercontinent

• superposition

• tectonic plates

• continental drift

Multiple Choice

How did the movement of tectonic plates affect the arrangement of continents over millions of years?

• It caused continents to fuse together permanently.

• It caused continents to drift apart from a supercontinent.

• It prevented continents from moving.

• It made continents smaller.

Multiple Choice

Which theory explains why Earth's continents slowly drift in different directions?

• Plate tectonics

• Continental drift

• Supercontinent theory

• Fossil evidence

Open Ended

Explain how fossil evidence supports the idea that continents were once joined together.

Multiple Select

Which of the following are evidence that the continents once formed Pangaea?

• Fossils of the same plant found on different continents

• Continental drift

• Movement of tectonic plates

• Presence of Mesosaurus fossils on multiple continents

Open Ended

Similar fossils found on continents that are far apart suggest that those continents were once part of the same_________ (One word)

Multiple Choice

Which statement best explains why similar fossils are found on continents that are far apart.

• The organisms evolved independently on each continent

• The continents were once joined together and later drifted

• The fossils were moved by ocean currents across continents

• The organisms could fly across oceans and settle in different regions

Open Ended

Explain how the law of superposition provides evidence that Earth has changed over time.

Multiple Choice

Which law helps scientists determine the relative ages of rock layers in undisturbed formations?

• Law of Superposition

• Law of Conservation

• Law of Gravity

• Law of Uniformitarianism

Multiple Choice

What does the law of superposition tell scientists about Rock layers?

• The youngest layers is always found at the bottom

• All rock layers form at the same time

• Older layers are found below younger layers in undistrubed sequences

• Fossils are found in top most layers only

Multiple Choice

Which of the following statements about rock layers is correct according to the law of superposition?

• The oldest layer is at the bottom and the youngest is at the top.

• The youngest layer is at the bottom and the oldest is at the top.

• All layers are the same age.

• Rock layers cannot be used to determine age.

Open Ended

Reflecting on today's lesson about Earth's change over time, what is one way plate tectonics, fossils, or rock layers provide evidence for how Earth has changed?