WebQuests‎ > ‎

Earth's Layers Webquest

Layers of the Earth Webquest      Name _________________________  Hr____

**Explore the following websites and answer the corresponding questions below to help you figure out what is so special about the structure of our Earth!**

Part I.  The Layers of Earth  :   

A.  Structure of the Earth: http://volcano.oregonstate.edu/earths-layers-lesson-1

1.    Label the layers of the Earth

 

2.    What causes the mantle to “flow”? ________________________________________

 

3.    What are the two main metals that make up the Earth’s core?          ___________________________ and _____________________________

 

4.    Describe, in your own words, how the earth’s layers were formed? (see “The Four Layers”)

____________________________________________________________

 

____________________________________________________________

 

B.  The Crust and Lithosphere (Earth’s Crust & the uppermost part of the Earth’s Mantle): 

Use the following sites to help you understand the Crust and Lithosphere--

http://www.harcourtschool.com/activity/science_up_close/606/deploy/interface.html

https://www.sciencedaily.com/terms/crust_(geology).htm


1.    What is special about the Lithosphere?  ______________________________________________________________ ______________________________________________________________

2.    Complete the following table:

https://www.reference.com/science/oceanic-continental-crust-alike-12a4cc5148776583

Types of Crust

Oceanic

Continental

Thickness:

Thickness:

Made of:

Made of:

VIP #1:

VIP #1

VIP #2:

VIP #2:

 

C.  Tectonic Plates

 http://www.livescience.com/37706-what-is-plate-tectonics.html

1.    What are tectonic plates? __________________________________________________________

2.    What is something else that you learned that helps you understand what is special about the Earth’s structure? __________________________________________________________

__________________________________________________________

Part II.  Convection Currents and the Mantle

Heat transfer is the movement of heat energy from a warmer object/place to a colder object/place.  There are three ways in which heat can be transferred: radiation, conduction, and convection.  Click on the following links and discover the awesomeness of what heat transfer can (& does) do for YOU!

A.Go to https://www.wisc-online.com/learn/natural-science/earth-science/sce304/heat-transfer--conduction--convection--radiation , Convection, Conduction and Radiation and   Heat Transfer  websites.

 

1.    How is heat transferred by conduction? __________________________________________________________       ____________________________________________________________

2.    Explain the process of convection. __________________________________________________________

__________________________________________________________

 

3.    How is heat transferred by radiation? ______________________________________________________

__________________________________________________________

 

B. On the Heat Transfer web page, click here and take the “Mini Quiz”.  Put your answers below.

 

1.     _____                  2.   _____                      3.  _____

 

 

 

C. Go to www.universetoday.com/26717/earths-mantle/ to learn about what influence convection currents have on Earth.  Read and answer the following questions.

 

1.    Describe how convection currents occur in Earth’s mantle. __________________________________________________________

__________________________________________________________

 

2.    What is a constructive force caused by the convection in the mantle? __________________________________________________________

__________________________________________________________

 

3.    What is a destructive force caused by the convection in the mantle? __________________________________________________________

__________________________________________________________

 

Comments