RETAKE - FLASHCARD Compositional Layers of Earth

Front

What is radioactive decay?

Back

Radioactive decay is the process by which unstable atomic nuclei lose energy by emitting radiation, resulting in the release of a large amount of energy in the form of heat.

Tags

NGSS.HS-PS1-8

Front

Which layer of the Earth is the only liquid layer?

Back

The Outer Core is the only liquid layer of the Earth.

Front

What happens to hotter, less dense magma near the core?

Back

Hotter, less dense magma near the core rises.

Tags

NGSS.MS-ESS2-1

Front

Which layer of the Earth is the least dense?

Back

The Crust is the least dense layer of the Earth.

Front

What are the temperature ranges of the Crust?

Back

The Crust has temperatures ranging from 20˚ - 870˚C (68˚ - 1598˚F) and is the coolest layer.

Tags

NGSS.MS-PS1-4

Front

What is the composition of the Earth's Crust?

Back

The Earth's Crust is primarily composed of rocks and minerals, including silicates and various types of sediment.

Tags

NGSS.MS-ESS2-1

Front

What is the Mantle?

Back

The Mantle is the layer of the Earth located between the Crust and the Outer Core, composed of semi-solid rock that flows slowly.

Front

What is the temperature range of the Mantle?

Back

The Mantle has temperatures ranging from about 870˚C to 3700˚C (1598˚F to 6692˚F).

Tags

NGSS.HS-ESS2-3

Front

What is the Inner Core?

Back

The Inner Core is the solid innermost layer of the Earth, composed mainly of iron and nickel, with extremely high temperatures.

Tags

NGSS.HS-ESS2-3

Front

What is the temperature of the Inner Core?

Back

The Inner Core has temperatures that can reach up to 5700˚C (10232˚F).