I went through the website's tutorial on coral bleaching and weather, which took a while. After learning the terminology and how to read the complicated graphs, I was able to research data from specific reefs around the world. I chose Sombrero Reef, which is off the coast of Key West in Florida. I was able to track monthly temperatures that were recorded and compared these to the monthly averages. I learned that as water temperature rose above the average for any extended periods of time, the coral was being stressed. If stressed for a long enough period of time, the coral will die.
I collected information for the year 2009. I recorded monthly averages versus actual temperatures each month. I put my data into a table and then made a line graph to show the monthly trends. By plotting two lines (one for average and one for actual temperatures), I was able to visualize any extended periods of time that the coral was being stressed.
I think this was a great inquiry activity. I think the tutorial on the NOAA website was fitting for an adult, but might be a little difficult for younger children. Due to this, I would say that if I were to use this in class, I would create my own background lesson. I would teach students the appropriate terminology and how to interpret the graphs. Here's a sample graph for the year 2010:

Students can choose coral reefs from anywhere in the world and collect data monthly or yearly. They can do what I did, which was to look at one year and temperatures for each month. Students could also look at periods of stress for each year if they choose.
I like the amount of information the site offers, one just needs to learn to move through it and not get overwhelmed by it all!
http://coralreefwatch.noaa.gov/satellite/current/sst_series_sombrero_cur.html
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