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Sea Change Part 2: In the Lab

Daniel Grossman, Sea Change

This video is the second of a three-video series in the Sea Change project, which follows the work of Dr. Maureen Raymo, paleogeologist at Columbia University's Lamont-Doherty Earth Observatory, who travels with fellow researchers to Australia in search of evidence of sea level that was once higher than it is today.

Video length is 14:06 min.

Learn more about Teaching Climate Literacy and Energy Awareness»

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Teaching Tips | Science | Pedagogy | Technical Details

Teaching Tips

  • Video could be watched as a stand-alone or in association with the two other videos on the Sea Change website ( Part 1: In the Field, and Part 3: Interpreting the Results)
  • Particularly strong for chemistry classes.

About the Science

  • Video follows the research of Dr. Raymo and other scientists' use of fossil shell samples from Australia to study how Earth responded to higher air temperatures in the Pliocene era.
  • Scientist Jeremy Inglis demonstrates and explains how relative proportions of isotopes of strontium can be used to date the fossil shells in which they are found.
  • Comments from expert scientist: The video is very well done, well-paced and makes use of very good graphics and animations.

About the Pedagogy

  • Familiarity with high-school level chemistry will help students understand the mechanism and power of tools such as thermo isotope mass spectrometers (TIMS) to date geologic samples.

Technical Details/Ease of Use

  • Video can also be viewed on the Sea Change website: http://sealevelstudy.org
  • Can be viewed in HD.
  • Closed-captioning provided; however, when captions are turned on the words are inaccurately transcribed and inserted incorrectly, which may be distracting to viewer and students.

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