Layers of Earth

What causes tectonic plates to move?

• Wind currents

• Ocean currents

• Convection currents in the mantle

• Magnetic fields

Tags

NGSS.MS-ESS2-3

What is the mechanical aspect of the Earth's crust related to?

• Weather patterns

• Plate tectonics

• Ocean tides

• Solar radiation

Tags

NGSS.MS-ESS2-3

What is the primary composition of the continental crust?

• Basalt

• Granite

• Limestone

• Sandstone

What is the Earth's crust primarily made of?

• Water and air

• Iron and nickel

• Rocks, silicon, aluminum, and magnesium

• Hydrogen and helium

Tags

NGSS.MS-ESS2-1

What is the mantle primarily composed of?

• Liquid water and air

• Dense semi-solid rock

• Pure iron

• Solid ice

What is the state of the top part of the mantle?

• Solid

• Liquid

• Semisolid

• Gas

What causes the Earth's outer core to generate a magnetic field?

• The flow of liquid iron and nickel

• The gravitational pull of the sun

• The presence of solid rock

• The Earth's atmosphere

What is the main cause of the outer core's magnetic properties?

• The presence of water

• The spinning of the core

• The sun's heat

• The Earth's atmosphere

Approximately how wide is the Earth's inner core?

• 500 miles

• 750 miles

• 1000 miles

• 1250 miles

Which layer of the earth is the thickest?

• inner crust

• outer core

• mantle

• inner core