Section 1 : The Structure of The Earth

What are the three main components of the earth?

• Sand, trees and oxygen

• Hydrosphere, Atmosphere and Geosphere

• Solid, liquid and gas

• Mantle, core and crust

When lying on the beach, which spheres are you in contact with?

• Atmosphere, Hydrosphere and Gesphere

• Oceanic crust, hydrosphere and core

• Core, mantle and crust

• Asthenosphere and core

the _____________ is about 500km thick and it is formed by a mixture of several gasses. This includes oxygen, a gas necessary for life of living things

• The Hydrosphere

• The Atmosphere

• The Geosphere

• The core

It is the solid part of the Earth. It is made up of the continents, islands, mountains, and all the land at the bottom of the oceana, rivers and lakes

• The Hydrosphere

• The Atmosphere

• The Geosphere

• The Mantle

The geosphere is formed by three layers:

• Crust, mantle and core

• Asthenosphere, atmosphere and lithosphere

• Lithosphere, core and biosphere

• Mantle, Upper mantle and Core

The crust has the coldest temperature of thee three layers of the geosphere. This layer includes continents, mountains and oceans floors. In some places, this layer it can be very thin, for example in _______________________

• The ocean floor

• Mountains

• Continents

• Hills

Liquid layer located in the mantle at about 600 km deep

• Lithosphere

• Asthenosphere

• Core

• Inner core

The _______________ can be almost 2900 km thick in places and is principally formed by solid rock. Its temperature varie between 100°C and 3000°C

• Inner core

• Asthenosphere

• Mantle

• Crust

What are the metals that we can find in the core?

• Iron and nickel

• oxygen and hydrogen

• Oxygen and iron

• Argan and carbon dioxide

The core is divided into two parts

• The liquid - Outer core and The solid- Inner core

• The liquid - Inner core and The solid - Outer core