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Science Time

Science Time

Program Content for October 1, 2014

Read the article “Utah salt caverns have starring role in megapower plan” on page A3 of the Thursday, September 25, 2014 edition of The Seattle Times.

 

Number hunt:  Match the statement to the correct answer choice.

1.      Year salt caverns will be excavated.

2.      Height in feet of excavated salt caverns when completed.

3.      Megawatts that can be generated by the air in each excavated salt cavern.

4.      Megawatts created by the compressed-air project’s Wyoming wind farm.

5.      Year California utilities must meet energy storage requirements.

 

Answer choices

A.               1300

B.               60,000

C.               2100

D.               2020

E.                2016

 

Comprehension Questions

1.      Describe the scale/size of the Wyoming wind power project.

2.      What is the purpose of the salt deposit chambers in central Utah and why are they necessary?  

3.      How will power demand influence the usage of compressed air when the project is completed?  

4.      Where was this type of power generating system first created?  

5.      What is one of the challenges facing compressed-air energy storage?  

6.      What three (3) events will help compressed-air energy storage overcome the challenge you identified in the question above?  

7.      How many companies are involved in the proposed compressed-air energy storage project and how much will it cost?  

8.      Describe the path of the power supply from start to finish.  

9.      What two (2) things are unique about California’s power requirements.  

10.    Why is compressed-air storage considered to be a better way to store power in comparison to a battery?  

11.    How will the salt caverns be excavated? Describe the two-step process.

 

Prompts and Extensions

1.      Learn more about wind turbines and create you own at home using the information provided here

2.      Watch this video about the challenges of meeting energy demand how compressed-air power generation works.

3.      Compressed air power generation is considered a renewable power source.  Complete research on another type of renewable power supply from the following list:  Biofuel, Solar, Hydroelectric, Geothermal, Tidal.  Prepare a presentation that meets the following requirements:  How does it work?  What are the benefits?  What are the challenges faced by this renewable energy supply industry?

4.      Calculate your households energy usage with this online calculator.

  

 

cience 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 by e-mailing nie@seattletimes.com or by calling 206/652-6290 or toll-free 1-888/775-2655.

Copyright © 2014 The Seattle Times Company

Program Content for September 24, 2014

Read the article “Report hits artificial sweeteners” on page A4 of the Thursday, September 18, 2014 edition of The Seattle Times.

 

Pre-reading and vocabulary:  Define each word and use it in a sentence to demonstrate your understanding.

1.      metabolism

2.      glucose

3.      diabetes

4.      correlation

5.      intolerance

 

Comprehension Questions

1.      What finding about artificial sweeteners was recently reported?  

2.      What animal was used in the sweetener experiments?  

3.      How do sweeteners influence the microbes living in the human body?  

4.      Where are the scientists who carried out this research from?

5.      Why do artificial sweeteners have 0 calories?  

6.      What role to bacteria play in human physiology?

7.      List three (3) conflicting and confusing findings from previous scientific studies involving artificial sweeteners.

8.      What three (3) types of sweeteners were tested in this experiment?  

9.      What is glucose intolerance?

10.    Why did scientists inject intestinal bacteria from mice who had drunk saccharin-laced water in mice that had never been exposed to saccharin?

11.    What happened when researchers injected human participants’ bacteria into the intestines of mice?  

 

Prompts and Extensions

1.      Test your knowledge of experimental design.  Identify the independent and dependent variables as well as the control and experimental groups in the study carried out on the three (3) artificial sweeteners.  

2.      Based on your knowledge of experimental design what suggestions would give to the scientists who carried out this research to improve the reliability of their results?

3.      Listen to this NPR radio segment for more information on this research and to hear from the scientist who conducted this study.

4.      This article focuses on a hot topic in science, the microbiome.  Learn and explore more about the human microbiome here.

  

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 by e-mailing nie@seattletimes.com or by calling 206/652-6290 or toll-free 1-888/775-2655.

Copyright © 2014 The Seattle Times Company


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