Plate Tectonics and Earth's Interior Quiz

What is the name of the outermost layer of the Earth?

• Mantle

• Core

• Crust

• Asthenosphere

What is the approximate thickness of the Earth's mantle?

• 50 miles

• 2,000 miles

• 5 miles

• 60 miles

Tags

NGSS.MS-ESS2-1

What is the Earth's core made of?

• Magnesium and iron

• Iron and nickel

• Oxygen and silicon

• Silicon and nickel

What is the name of the layer below the crust and tectonic plates?

• Mantle

• Asthenosphere

• Core

• Lithosphere

What is the process through which solid rock from the asthenosphere becomes liquid magma?

• Subduction

• Slab pull

• Decompression melting

• Convection current

Tags

NGSS.MS-PS1-4

What creates the powerful magnet around the whole Earth?

• The inner core

• The tectonic plates

• The outer core

• The asthenosphere

What theory suggests that magma coming up through ocean ridges may exert a pushing outward force on adjacent tectonic plates?

• Slab pull theory

• Convection current theory

• Magnetic field theory

• Decompression melting theory

Tags

NGSS.MS-ESS2-3

What is the consistency of the asthenosphere?

• Plasma

• Gas

• Rocks

• Liquid