Interior Earth

The four layers that make-up the earth’s composition are

• Crust, Lithosphere, Mesosphere and Core

• Lithosphere, Asthenosphere, Mantle and Core

• Crust, Mantle, Outer Core and Inner Core

• Mantle, Outer Core, Lithosphere and Crust

Tags

NGSS.MS-ESS2-1

The Earth separated into the three layers when?

• during Earth's formation when the entire planet was liquid

• during Earth's formation when the entire planet was solid

• Many millions of years ago when the Earth was hit by a giant asteroid

• All choices

The deeper into Earth you go the...

• greater the pressure

• less pressure

• pressure remains the same

The crust is...

• Thick...same thickness as the other layers

• Thin...the picture on this page shows the correct scal

• Very thin...like an eggshell covering an egg

• Medium thickness...just a little thinner than the mantle and core

What is the difference between the lithosphere and the asthenosphere that makes up the mantle?

• The lithosphere is made of dense solid metal while the asthenosphere is made of liquid molten metal

• The lithosphere is a mixture of gases while the asthenosphere is made of solid rock

• The lithosphere is molten rock that moves while the asthenosphere is rigid and thin

• The lithosphere is made of solid rock while the asthenosphere is hotter, more flexible rock that moves.

What is the difference between the lithosphere and asthenosphere that makes up the mantle?

• The lithosphere is ismade of dense solid meal whle the asthenosphere is made of liquid molten metal

• The lithosphere is a mixture of gasses while the asthenosphere is made of solid rock

• The lithosphere is molten rock that moves while the asthenosphere is ridid and thin

• The lithosphere is made of solid rock while the asthenosphere is more flexible hot rock that moves.

Tags

NGSS.MS-ESS2-1

What is the difference between the lithosphere and asthenosphere that makes up the mantle?

• The lithosphere is made of dense solid metal while the asthenosphere is made of liquid molten metal

• The lithosphere is a mixture of gases while the asthenosphere is made of solid rock

• The lithosphere is molten rock that moves while the asthenosphere is rigid and thin

• The lithosphere is made of solid rock while the asthenosphere is more flexible hot rock that moves.

Answer explanation

The lithosphere is made of solid rock, providing a rigid outer layer of the Earth, while the asthenosphere consists of more flexible, hot rock that can flow, allowing for tectonic movement.

The formation of magma is a process driven by energy from _____________.

• the sun

• Earth's interior

Answer explanation

Earth's interior is extremely hot due to the heat from the inner core. This heat causes the mantle to be hot enough to melt rock into magma.

The mantle is hot enough to be a liquid, but it is considered "plastic rock".  Why isn't it a liquid (melted rock)

• Too much pressure

• Too hot

• Too close to the radioactive core

• All choices

Which would describe the asthenosphere (middle mantle)?

• Solid basalt rock

• Plastic basalt rock the consistency of toothpaste

• Plastic basalt rock the consistency of jello

• Molten (melted/liquid) basalt rock