Plate Motion Pre-Unit Assessment

Front

Earth’s outer layer beneath soil and ocean is hard, solid rock.

Back

Underneath both the soil and the ocean, Earth’s outer layer is made of hard, solid rock.

Front

Dr. Raisa's team studied GPS data showing two plates moving apart. Which diagram illustrates this?

Back

Diagram D: Soft, solid rock from underneath the plates rose and hardened, adding solid rock to the edges of both plates.

Front

Fossil remains of Lystrosaurus found in India and South Africa. They lived on land and couldn't swim. Now, an ocean separates the fossils. How did they get so far apart?

Back

India and South Africa are on different plates. The plates slowly moved apart as soft rock from underneath was added to their edges over millions of years.

Front

Cross section of a vertically cut potted plant?

Back

Diagram D

Front

Geologists studying hard rock in Saudi Arabia (1) or the Arabian Sea (2).

Back

Under 1 and 2, because Earth’s outer layer is hard, solid rock.

Front

Dr. Patel's team uses GPS to track two plates moving toward each other. Which diagram illustrates this?

Back

Diagram C: One plate is going underneath the other and sinking into soft rock.

Front

Similar rock formations in Brazil and South Africa formed simultaneously. How did they get so far apart?

Back

Brazil and South Africa are parts of different plates. The plates slowly moved far apart as soft, solid rock from underneath got added to the edges of the plates over millions of years.

Front

Patterns on this map indicate...

Back

volcanic activity and earthquakes occurred in similar areas.

Front

Earth’s outer layer beneath soil and ocean is made of:

Back

hard, solid rock.

Front

Dr. Bailey's team studies two distant plates that were once adjacent. What diagram illustrates their findings?

Back

Diagram A: Soft, solid rock from underneath the plates rose and hardened, adding solid rock to the edges of both plates.