Gravity and Core of Earth

Earth's temperature, pressure and density

• decrease as you approach its core

• decrease as you approach its crust

• increase as you approach its crust

• increase as you approach its core

The inner core is

• includes the crust and upper mantle

• the thinnest layer of Earth

• made of liquid metal

• made of iron crystals

The only liquid layer of Earth

• Crust

• Mantle

• Outer Core

• Inner Core

A solid, dense ball of nickel and iron (layer of Earth)

• Crust

• Mantle

• Outer Core

• Inner Core

Which layer of Earth is the most dense?

• Crust

• Mantle

• Core

• Lithosphere

Earth's inner core is solid because ____________

• there is so much pressure being put on it

• it is very cold

• of all the oxygen stored there

• it is not very dense

Which Layer of Earth is the most thick at about 2000 miles?

• Crust

• Mantle

• Inner core

• Outer core

the force that every object exerts on all other objects because of their masses

• gravity

• density

• mass

• hydroshere

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

the dense metallic center of the Earth

• core

• crust

• nickel

• iron

What is the primary force that keeps the planets in orbit around the Sun?

• Electromagnetic force

• Nuclear force

• Gravity

• Friction

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4