Ch.1 Introducing Earth (7th)

Front

What is water vapor?

Back

Water vapor is water in the form of a gas.

Front

Which layer of Earth is the thickest?

Back

The mantle is the thickest layer of Earth.

Front

What are convection currents?

Back

Convection currents are cycles in the mantle where heat is transferred as soft rock flows slowly.

Front

What is the theory of plate tectonics?

Back

The theory of plate tectonics states that Earth's plates move very slowly in various directions.

Front

What is Earth's inner core made of?

Back

Earth's inner core is a dense ball of solid metal.

Front

What is the Earth's crust?

Back

The Earth's crust is the outermost layer that forms Earth's outer skin.

Front

What is the mantle?

Back

The mantle is the layer of Earth between the crust and the outer core, consisting of hot, semi-solid rock.

Front

What is the outer core?

Back

The outer core is a layer of molten metal that surrounds the inner core.

Front

What is the inner core?

Back

The inner core is the solid, dense center of the Earth, primarily made of iron and nickel.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for life.