Showing category "new lab procedure" (Show all posts)

New Video

Posted by Antonio Chaves on Monday, December 14, 2015, In : new lab procedure 
I just posted a new video on the relationship between development and consumption. I hope this encourages instructors to teach more development-related issues.
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Second Edition Updates

Posted by Antonio Chaves on Friday, September 26, 2014, In : new lab procedure 
The second edition is finished. I have updated the lab manual page to reflect this, and changed the posted excerpts to incorporate the final corrections. To save printing costs I have removed the last activity from the printed book and put it into the CD as a "supplement" because it has many pages, and is too difficult for most environmental science students. I like this activity (Chemistry of Flue Gas Desulfurization), but to be honest I only used this activity on my AP chemistry students. I...
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New Video on Generating Electricity

Posted by Antonio Chaves on Saturday, August 16, 2014, In : new lab procedure 
I have a new video available. It is a detailed procedure on measuring the efficiency of a cordless drill generator. This is a bit more complicated than doing this with a car fan, but it generates much more watts. This procedure is also included in the new edition of the lab manual
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Feed Conversion in Mealworms

Posted by Antonio Chaves on Saturday, July 12, 2014, In : new lab procedure 
Some months ago I walked into a pet store and saw a glass tank with mealworms eating dry cat food. Since dry cat food comes in nuggets that allows you to easily recover the leftovers this gave me an idea for new activity. The rule of thumb for productivity/energy recovery up each link of the trophic pyramid is around 10%. The biomass recovery I got with with my mealworms was around 20% (based on dry weight). It is higher than the rule of thumb because I was raising them during their period of...
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About this blog

This blog was originally created in January 2013 to serve as a means for providing updates on science activities from the environmental science lab manual Ecology, Development, and Sustainability. I have now expanded its purpose to include other items of interest to science teachers. 

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