The structure of the earth
    

    
    
    


        

The structure of the earth

The planet Earth

The Earth

Introduction

This lecture will give you the basic knowledge of the the earth structure ,which will lay an important foundation for your future study on geographical knowledge and theory .

Objectives

You will learn about the four layers of the Earth and  grasp the characteristics of each layer of the earth.



Activity 1: The four concentric layers and basic plate theory

Recall the structure of the earth and and basic theory of the plate .

 

Instruction

Look at each of these statements about the structure of the earth and decide if they are true or false and then read the feedback.

 

The Earth consists of four concentric layers: inner core, outer core, mantle and crust



The crust is made up of tectonic plates.



Th Earthquakes are most likely to occur at plate center 



 volcanoes are most likely to occur at plate core.



Tectonic plates  are in  motionlessness



Additional Resources

 

 

Activity 2: Multiple choice questions about the Earth

Clarify the features of each layer.

Instruction

Choose one of the options from the following statements.

(OPTIONAL) Insert any additional text here

1.Which layer, also made up of iron and nickel, is still extremely hot, with temperatures similar to the inner core?

A inner core    

B outer core        

C mantle            

D crust  





2. Which core is in the center and is the hottest part of the Earth?

A Inner core

B Outer core

C Mantle

D Crust  

 





3 Which  section of the Earth has a thickness of approximately 2,900 km.?

A Inner core

B Outer core

C Mantle

D Crust  

 





Additional Resources

Watch this video for more information:

References:

1) Fred Maxwell&Jet Franklin, What Do You Know about the Earth:A Serious Issue,2007. Cambridge University Press,London

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