Frozen in Time: Ice Cores by Jan French
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Click here for the Pdf lesson, complete with ice core instructions and student worksheet.
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Click here for PBS "Stories in the Ice."
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Click here for National Ice Core Laboratory.
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Click here for another Pdf lesson in which the students model their own ice cores using play dough and other substances. Then their cores are exchanges and studied. Very kewl!
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Click here for a nice "movie" of the life of a snowflake, showing how a glacier forms in layers from snow. Click here for accompanying lesson.