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Dendrochronologists use tree rings to go back in time to learn more about past climate. Using straws to recreate tree rings, you can learn how dendrochronologists work. Construct a 50-year climatic history on a three-meter time line. In this activity, students use the spacings between tree rings to...
Grade Level   5 6 7 8 9
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Current consumption of fossil fuel releases more than 25 billion tons of CO2 into the atmosphere every year. If current trends continue, there will be a tripling of atmospheric CO2 by the end of the century—levels not seen for more than 40 million years. By measuring our carbon footprint, we can...
Grade Level   4 5 6 7 8 9 10 11 12
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This FAQ (Frequently Asked Questions) website attempts to address various questions regarding hurricanes, typhoons, and tropical cyclones that have been posed to us as hurricane researchers over the years. While it is not intended to be a technical guide, references are given throughout the FAQ for...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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