Writings and videos about science activities with an emphasis on environmental science and energy measurement

Browsing Archive: January, 2013

Spirogyra to the rescue!

Posted by Antonio Chaves on Wednesday, January 30, 2013, In : modified lab procedures 
Last week I needed green water in order to do Lab 1-2 (Net Primary Productivity & Biological Oxygen Demand). It's not easy finding it in the middle of January, but on the day of the lab I drove to my most reliable source: a 1-acre pond in a small park heavily trafficked by waterfowl. To my dismay, the pond had been drained for cleaning! With little time to spare, I needed a substitute, so I used the filamentous algae that was invading my fish tank. I distributed the algae equally into light a...
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First Post

Posted by Antonio Chaves on Tuesday, January 29, 2013,
It has now been about 5 months since the manual went to press. During that period I found some minor editorial errors that can easily be corrected by the new user. More importantly, I recently started teaching a class at Washington Adventist University that meets on only two consecutive days per week. This is very different from my previous situation at St. Anselm's Abbey School because the equipment available to me is not the same and I don't have the benefit of seeing my students on a daily...
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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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