DE: Level 1 and 2 Mastery Check (Density and Earth's Layers)

Front

What is the primary method scientists use to determine the structure of Earth's lower mantle and core?

Back

Seismic Waves

Front

What drives the convection currents in the Asthenosphere and Outer Core?

Back

Heat from the radioactive decay of elements deep in Earth’s interior.

Front

Which color block is least dense when placed in water: Purple, Red, Blue, or Yellow?

Back

Red

Front

What layer of the Earth is made of extremely hot, solid metal?

Back

Inner Core

Front

What is the process called when rocky material grows in size due to repeated collisions with other space debris?

Back

Accretion

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

How does temperature affect the density of materials?

Back

Generally, as temperature increases, density decreases because materials expand.

Front

What is the Earth's outermost layer called?

Back

Crust

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid, while the outer core is liquid.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases).