<TED Worksheet (Free)>
40.  What’s a smart phone made of?
Kim Preshoff
<4:46>   October 2018

 

Questions
(PDF)   (Word)

Answers
(PDF)   (Word)

Trascript

 

≪Questions:What’s smartphone made of?≫

1. As of 2018, how many smart phone users are there in the world?

 

 

2. If we open up all our newest smart phones and break them into pieces, how many kilograms of gold, silver, and copper will we get?

   Gold:                     kg

   Silver:                    kg

   Copper:                   kg




  1. How many different chemical elements does the average smartphone have?

   

 

4. The following passage describes what rare earthelements Circle the correct answers in the parentheses and fill in the blanks.

a. They are a selection of

    (1)                        elements.

b. They are found in ( many / a few )

     areas across the world in

    ( high / low ) concentrations.

c. They have a huge range of

   (2)                    , phosphorescent,

   and (3)                  properties.

d. They are used to createthe

    (4)                       and color display,

     aid conductivity, and

     produce the signature vibrations.




5. The method called “open pit mining” is usually used to extract rare earth elements, but it causes some problems. List two problems.

 (1)                                             

                                                  

 

 (2)                                             

                                                   

 

 

6. Which of the following problems is not caused by mining ingredients which are required to make smartphones?

  1. Habitat destruction.
  2. Lack of oil.
  3. Human and animal displacement.
  4. Poor working conditions for laborers.  

 

7. List two ways to reduce the number of wasted smartphones.

 (1)                                             

                                                  

 

 (2)                                              

                                                   

     

 

8. Producing smartphones will cause social and environmental problems, but dismantling them will also cause some problems. Which of the following problems is an example of problems caused by dismantling smartphones?

  1. Tons of oil will be used.
  2. Buildingspecial plants for dismantling smartphones will destroy many natural habitats.
  3. Laborers will be exposed to toxic elements like lead and mercury without receiving appropriate training.  
  4. Because laborerswill deal with small pieces, their vision will decline.




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≪Answers:What’s smartphone made of?≫

1. As of 2018, how many smart phone users are there in the world?
 (around) 2.5 billion

 

2. If we open up all our newest smart phones and break them into pieces, how many kilograms of gold, silver, and copper will we get?

   Gold:   85,000   kg

   Silver:    875,000   kg

   Copper:    40 million   kg




3. How many different chemical elements does the average smartphone have?
   70

 

4. The following passage describes what rare earthelements Circle the correct answers in the parentheses and fill in the blanks.

a. They are a selection of

    (1)    17     elements.

b. They are found in ( many / a few )

     areas across the world in

    ( high / low ) concentrations.

c. They have a huge range of

   (2)  magnetic , phosphorescent,

   and (3)  conductive   properties.

d. They are used to createthe

    (4)  screen     and color display,

     aid conductivity, and

     produce the signature vibrations.




5. The method called “open pit mining” is usually used to extract rare earth elements, but it causes some problems. List two problems.

 (1) It destroys huge swaths 

       of natural habitats.        

 

 (2)  It causes air and water   

         pollution.                      

 (another possible answer) It threatens the health of nearby communities.

 

6. Which of the following problems is not caused by mining ingredients which are required to make smartphones?

  1. Habitat destruction.
  2. Lack of oil.
  3. Human and animal displacement.
  4. Poor working conditions for laborers.  

 

7. List two ways to reduce the number of wasted smartphones.

 (1)  donating them to 

       charity (for reuse)  

 

 (2) taking them to an             

        e-waste recycling facility 

   (another possible answer) looking for a company that refurbishes old models

 

8. Producing smartphones will cause social and environmental problems, but dismantling them will also cause some problems. Which of the following problems is an example of problems caused by dismantling smartphones?

  1. Tons of oil will be used.
  2. Buildingspecial plants for dismantling smartphones will destroy many natural habitats.
  3. Laborers will be exposed to toxic elements like lead and mercury without receiving appropriate training.  
  4. Because laborerswill deal with small pieces, their vision will decline.

 
 

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