History's Thermometers

Ancient coral beds give scientists clues to past ocean temperatures in much the same way that tree rings indicate historical weather conditions. High school scientists examine coral oxygen isotope ratios and plot the data as a function of the age of the coral. They relate their findings to climate change. Many resource links are included that can lead to extension activities. 

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Resource Details

Grade
9th - 12th
Subjects
Science
1 more...
Resource Type
Lesson Plans
Duration
45 mins
Usage Permissions
Public Domain
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