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Showing 81-91 of 91 Resources
  • Weighing the Evidence for a Mass Extinction—In the Ocean

    Weighing the Evidence for a Mass Extinction—In the Ocean

    Activities

    A hands-on activity in which students see first-hand the difference in foraminifera fossils below and above the K-T boundary. Also available in Spanish.

  • Calculating Iridium Fallout From an Asteroid Impact

    Calculating Iridium Fallout From an Asteroid Impact

    Activities

    A worksheet in which students calculate how much iridium was released, and eventually deposited all over the Earth, by the impact of the asteroid that caused the K-T extinction.

  • Distribution of Elements in Earth’s Crust

    Distribution of Elements in Earth’s Crust

    Activities

    A lesson in which students read a passage and answer questions about the information presented, testing their non-fiction reading comprehension.

  • Chemical Signatures of Asteroid Impacts

    Chemical Signatures of Asteroid Impacts

    Activities

    A lesson in which students analyze the chemical data that led researchers to conclude that the K-T boundary layer contained an extraordinary concentration of iridium. 

  • Article: The Day the Mesozoic Died

    Article: The Day the Mesozoic Died

    Readings

    A short article by Dr. Sean B. Carroll detailing the discoveries covered in the film The Day The Mesozoic Died.

  • Film Guides: The Day the Mesozoic Died

    Film Guides: The Day the Mesozoic Died

    Film Guides

    The following classroom-ready resources complement The Day the Mesozoic Died, which tells the story of the extraordinary detective work that led to the stunning discovery that an asteroid struck Earth 66 million years ago, triggering a mass extinction of animals, plants and even microorganisms.

  • Winogradsky columns: Microbial ecology in the classroom

    Winogradsky columns: Microbial ecology in the classroom

    Activities

    An activity that recreates zones of microbial activity in a glass column. To accompany the lecture series Changing Planet: Past, Present, Future.

  • Click and Learn App

    Click and Learn App

    Apps and eBooks

    Interactively explore topics in biology with the Click and Learn app. Now available from the Apple App Store, Google Play, and Amazon Apps!

  • Stratigraphic Principles

    Stratigraphic Principles

    Clips

    (2 min 21 sec) Dr. John Shea demonstrates the two main principles in the study of rock layers: superposition and association.

  • Rift Valleys of Africa and Plate Tectonics

    Rift Valleys of Africa and Plate Tectonics

    Clips

    (2 min 14 sec) African rift valleys were formed by the separation of tectonic plates. Water flows down to the valley floors, creating rivers and lakes.

  • Fossil Evidence and Evolution

    Fossil Evidence and Evolution

    Posters

    The poster from the 2005 Holiday Lectures on Science, Evolution: Constant Change and Common Threads. Place the fossils in the right geological era, period, and epoch. (This poster is designed to printed at a maximum size of 29.5" x 23.5".)

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