Friday, December 5, 2008

Weighing Leaves

Today was our last day to work on experiments. Another teacher, Brad, and I collected sorted leaves out of the drier and weighed each type of leaf collected from each of the different plots.(Remember the big bags of leaves I saw on the first day.) We had to use an electronic scale to weigh the leaves in the bag. Then we had to subtract the weight of the bag (the tare weight)because we only wanted to know how much the leaves weighed. When the leaves decay they also become a source of carbon dioxide.
Our group took a picture on a bridge that is close to our dormitory. You can see the seven of us in our protective orange vests. We will all leave tomorrow. I have learned so much about global warming it makes me want to have everyone conserve energy by turning off appliances not being used (including computers), adjusting the thermostat when you're not at home, taking bags to the grocery store, and recycling everything we can. I hope we can plan a paperless day at school once a month. Our Earth is warming faster than it ever has historically, and we have to do everything we can to cut down on the amount of carbon dioxide we add to the atmosphere. I look forward to seeing you on Monday,
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2 Comments:

At December 6, 2008 1:46 AM , Blogger Alex Luu said...

Hello Ms.Catledge I am Alex Luu form aiea high school, a student of Mr.Lewandowski.

What was the funest thing that you did?

 
At December 16, 2008 11:03 PM , Blogger Mrs. Catledge said...

Hi Alex,
I liked measuring and identifying the trees. I also liked wearing the orange vest.

 

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