The Structure of the Earth

Draw the earth structure and label it.

The ----- is divided into two parts - the inner core and

the outer core.

• curst

• metal

• core

The inner core is a ball of iron and nickel, which is

2740 km in diameter. There are also --------

elements present, like uranium, and they generate

heat, which keeps the core at about 5000°C.

• radio active

• nebula

• nuclear fusion

Tags

NGSS.HS-PS1-8

The temperature of the inner core is -------

• 5000'C

• 2740'C

• 2000'C

Tags

NGSS.HS-ESS2-3

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The outer core is 2000 km thick and is composed of

more iron and nickel.

• iron and nickel

• helium and iron

• hydrogen and nickel

The difference in

movement in the two metallic regions is thought to

generate the Earth's magnetic field .

• radio active

• magnetic field

• metallic field

Tags

NGSS.HS-PS2-5

The ------- is made of rocky material and is 2900 km

thick.

• mantle

• inner core

• outercore

The mantle is composed mainly of the elements iron, silicon,

...........

• hydrogen and magnesium

• hydrogen and helium

• oxygen and magnesium

Tags

NGSS.MS-PS1-1

The main compounds in the mantle are called silicates.

They are made from silicon and oxygen atoms, which

combine with atoms of other elements.

• hydrogen and oxygen

• silicon and oxygen

• silicon and hydrogen

Tags

NGSS.MS-PS1-1

The mantle is very hot - for example, it is 1500°C at a

depth of ------ km below the Earth's surface.

• 2500 km

• 1500 km

• 2000 km