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Science Time

Science Time

Program Content for March 4, 2015

Read the article “Instruments catch carbon warming the planeton page A1 of the Thursday, February 26, 2015 edition of The Seattle Times.

 

Pre-reading and Vocabulary: Define each term and then use it in a sentence to demonstrate your understanding.

1.      greenhouse gas

2.      emission

3.      fossil fuel

4.      infrared

5.      radiation

 

Comprehension Questions

1.      What is the relationship between rising surface temperatures and carbon dioxide?  

2.      What is the main source of carbon dioxide?

3.      Why was the UC Berkeley scientists’ study important?

4.      Make a list of effects that greenhouse gas emissions have had on Earth?

5.      What is “radiative forcing”?   

6.      How was “radiative forcing” measured by scientists?  

7.      What were scientists able to determine after they examined their collected data?  

8.      How much has the Earth’s surface warmed since 1882?  

9.      By how much did the amount of carbon dioxide in the Earth’s atmosphere increase during the UC scientists’ study?  

 

Prompts and Extensions

1.      Listen to an interview of one of the scientists explaining the importance of their study.

2.      Watch this five-part animated series explaining the role carbon dioxide plays in the warming of the Earth’s surface.

3.      Visit the Alliance for Climate Change Education website.  Learn about what you and your classmates can do to help prevent climate change.

Science Time is posted to the Web on Wednesdays. Please share this NIE Science Time program with other teachers. To sign-up for the electronic edition for your class, please register

Copyright © 2015 The Seattle Times Company

Program Content for February 25, 2015

Read the article “Messing with mosquito DNA creates angry buzz” on page A1 of the Friday, February 20, 2015 edition of The Seattle Times.

 Pre-reading and Vocabulary: Define each term and then use it in a sentence to demonstrate your understanding.

1.      insecticide

2.      synthetic

3.      DNA

4.      genetically modified

5.      breeding

 

Comprehension Questions

1.      What form of mosquito control is being proposed to residents of Key Haven, Florida?

2.      What two diseases are trying to be combated with genetically modified mosquitoes?

3.      What is one major concern residents of Key Haven have against the release of genetically modified mosquitoes?  

4.      What steps have been taken by the company Oxitec towards releasing genetically modified mosquitoes?  

5.      What will Oxitec scientists do with mosquitoes if their field trial is permitted?  

6.      What is the goal of the trial release of genetically modified mosquitoes?  

7.      How many Oxitec mosquitoes have already been released?  

8.      What are two advantages of using genetically modified mosquitoes like those created by Oxitec?  

9.      Have previous trials in other countries been successful?  

10.     Based on the questions asked in the article and the scientists interviewed, are there any concerns residents should have about the release of Oxitec mosquitoes?  

 

Prompts and Extensions

1.      Watch this video clip that includes additional information about Oxitec’s mosquitoes and their field test plan to learn more about this issue.

2.      How would you feel about having Oxitec mosquitoes released into your neighborhood if you were a resident in Key Haven, Florida?  Would you support the field trial?  Why or why not?  Base your answer on what you have learned about genetically modified mosquitoes in this article and any outside research you wish to complete.  Support your position with evidence and be sure to address the opposing views of residents who may be in against your point of view.

3.      Mosquitoes are not the only type of organism that can be genetically modified; your food can too.  Learn more about genetically modified foods here.  When finished reading write down how genetically modified tomatoes are made and the risks and benefits of genetically modified food.  Also, watch this video clip about the first genetically modified food to be sold in the U.S., the Flavr Savr tomato.

  

Science Time is posted to the Web on Wednesdays. Please share this NIE Science Time program with other teachers. To sign-up for the electronic edition for your class, please register

Copyright © 2015 The Seattle Times Company


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