Layers of the Earth 6th Grade REVIEW

Front

What is the inner core of the Earth composed of?

Back

The inner core is primarily composed of solid iron.

Front

What are the characteristics of the inner core?

Back

The inner core is dense, under the most pressure, has the highest temperatures, and is 1250 kilometers thick.

Front

What is Layer 3 of the Earth according to the model?

Back

Layer 3 is the mantle, which is composed of semi-liquid, slowly moving rock.

Front

How do Layer 3 (mantle) and Layer 5 (crust) compare in temperature to Layer 1?

Back

Both Layer 3 (mantle) and Layer 5 (crust) are cooler than Layer 1.

Front

What is the asthenosphere and where is it located in relation to the mantle and core?

Back

The asthenosphere is a semi-fluid layer located beneath the lithosphere (crust and upper mantle) and above the lower mantle.

Front

What mistake did Kenyatta make in his model of Earth's layers?

Back

Kenyatta marked the inner core as a gas.

Front

What is the composition of the mantle?

Back

The mantle is composed of semi-liquid, slowly moving rock.

Front

What is the thickness of the inner core?

Back

The inner core is 1250 kilometers thick.

Front

What is the temperature and pressure condition of the inner core?

Back

The inner core is under the most pressure and has the highest temperatures.

Front

What are the main layers of the Earth?

Back

The main layers of the Earth are the inner core, outer core, mantle, and crust.