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Activator:. How would you explain the theory of Pangaea to a group of first graders?. What is an Ice Core?. Cylinder of ice removed from an ice sheet . Layers of snow become compacted into ice, which are laid atop previous layers of ice to create records of the past. Like rings of trees in

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  1. Activator: How would you explain the theory of Pangaea to a group of first graders?

  2. What is an Ice Core? • Cylinder of ice removed from an ice sheet. • Layers of snow become compacted into ice, which are laid atop previous layers of ice to create records of the past. • Like rings of trees in temperate parts of the world, ice layers in polar regions and glaciers also create layered historical records.

  3. Video clip

  4. http://www.nhm.ac.uk/nature-online/environmental-change/measuring-climate-change/ice-cores/http://www.nhm.ac.uk/nature-online/environmental-change/measuring-climate-change/ice-cores/

  5. Work in pairs to answer the following questions. • Why do scientists drill ice cores? • What makes ice cores so useful for climate research? • Where do you drill them? • How deep are ice cores drilled? • What has so far been discovered with ice core research? • What discoveries have our scientists made? • What tests have to be made before the ice is drilled? • How does the drill work? • What do you do next with the ice cores? • What sore of information can be found out by the analyses?

  6. Ice Core Observation

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