6.1 Earth's Layers Flashcard

Front

What are the three main layers of the Earth based on composition?

Back

Crust, Mantle, Core

Front

What is the 'Moho' and what does it separate?

Back

The 'Moho' is the boundary between the Earth's Crust and Mantle.

Front

What is the outermost layer of the Earth called?

Back

The Crust.

Front

What is the layer beneath the Earth's crust?

Back

The Mantle.

Front

What is the innermost layer of the Earth?

Back

The Core.

Front

What are the two types of crust found on Earth?

Back

Continental Crust and Oceanic Crust.

Front

What is the primary composition of the Earth's core?

Back

Iron and Nickel.

Front

What is the difference between the lithosphere and asthenosphere?

Back

The lithosphere is the rigid outer layer of the Earth, while the asthenosphere is a semi-fluid layer beneath it.

Front

What is the significance of the lithosphere in plate tectonics?

Back

The lithosphere is broken into tectonic plates that float on the semi-fluid asthenosphere.

Front

What is the temperature range of the Earth's mantle?

Back

Approximately 500 to 4,000 degrees Celsius.