Earth's Interior

What is the thinnest layer of the Earth?

• Mantle

• inner core

• outer core

• crust

Which layer is the thickest?

• Crust
• Mantle
• Core
• All of them are the same size

Which layer of Earth is about 6 miles (10 km) thick below the oceans and 25 miles (40 km) thick below the continents?

• crust
• mantle
• outer core
• inner core

What is the inner most layer of Earth?

• core
• outer core
• inner core
• asthenosphere

How do scientists know the Earth has layers?

• Drilling into the mantle

• Volcanoes

• Seismic waves data

• ocean waves

The continental floor is made up of?

• Flowers and grass

• Basalt

• Granite

• Soil

Tags

NGSS.MS-ESS2-1

The oceanic floor is made of?

• Granite

• Basalt

• Soil

• Water

Tags

NGSS.MS-ESS2-3

Which layer contains BOTH the rigid (upper) mantle and the crust?

• lithosphere

• atmosphere

• mesosphere

• athensosphere

Which layer(s) of the Earth is the asthenosphere part of?

• mantle

• Outer Core

• Inner Core

• lithosphere

Which layer of Earth is part of the mantle but can flow slowly?

• asthenosphere

• biosphere

• lithosphere

• magnetosphere