inside our earth

INSIDE OUR EARTH

GEOGRAPHY

Our Earth

• Earth is a Dynamic planet

• Earth is a Unique planet

LAYERS OF THE EARTH

-The earth is made up of three concentric layers-crust, mantle and core.

-The uppermost layer over the earth’s surface is called the crust. It is about 35 km thick on the continental masses and only 5 km thick on the ocean floor.

-It is made up of silica and alumina and thus called sial.

Multiple Choice

what are the layers of the earth

• crust, mantle and core.

• gold and silver