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Smithsonian Science How Webcast

Mass Extinction - Solving the Dinosaur Mystery

In this video, Dr. Kirk Johnson explains evidence for what happened during the mass extinction event 66 million years ago.

Description: 

Meet Dr. Kirk Johnson, a paleobotanist and Sant Director of  the National Museum of Natural History. See how he and other experts joined forces to figure out what happened at the end of the Cretaceous, 66 million years ago. While you may be familiar with the extinction of large dinosaurs, you might not realize that much of the other life on Earth went extinct as well. Join Kirk as he explores the extinction and recovery stories told by fossils found at the Hell Creek Formation in North Dakota. Examine evidence for the causes, the consequences, and the aftermath of the mass extinction for life on Earth. This show aired October 8, 2014.

Paleontology

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National Middle School Standards

Next Generation Science Standards (NGSS)

Earth Science

MS-ESS1

Earth's Place in the Universe
  • MS-ESS1-4Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth's 4.6-billion-year-old history.

MS-ESS2

Earth's Systems
  • MS-ESS2-2Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.
Life Science

MS-LS4

Biological Evolution: Unity and Diversity
  • MS-LS4-1Analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout the history of life on Earth under the assumption that natural laws operate today as in the past.
  • MS-LS4-2Apply scientific ideas to construct an explanation for the anatomical similarities and differences among modern organisms and between modern and fossil organisms to infer evolutionary relationships.

All Q?rius Resources for These Standards

MS-ESS1, MS-ESS2, MS-LS4