This is a worksheet that goes with 2 short video clips that I have found to be very useful. They are 3-min. long a piece, but very informative. Teaching ice cores and how they relate to Earth's history can be tough because there is not a lot of information in textbooks or school resources.
Here are links to the video clips. The links are also embedded in the worksheet. An answer key is also provided.
Ice Core Record of Climate
CO2 in the Ice Core Record
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