We invite you to explore PBS LearningMedia™! or here.
After 2 resource views, you will be prompted to create an account.

Mass Extinction

Grades: 6-12
Login with your PBS account
Closed Captioning Settings
×

Preview

Captions look like this

Captions size

  • 15

Captions font family

Edge style

Captions color

Background color

Window color

Text Opacity

  • 100%

Background Opacity

  • 100%

Window Opacity

  • 0%
  • Save Settings
  • Reset

This video segment adapted from NOVA scienceNOW examines a developing theory that might explain a 250-million-year-old "murder mystery." While several possible causes have been ...

See More

Download:

Accessibility: Auditory, Visual, Caption, Transcript

Permitted use: Stream, Download and Share

© 2009 WGBH Educational Foundation. All Rights Reserved.

Favorite count: 102
Benchmarks for Science Literacy
NSTA National Science Education Standards


Source:

NOVA scienceNOW: "Mass Extinction"

Visit the program page here.

Credits

Adapted from NOVA scienceNOW: "Mass Extinction." Third party materials courtesy of American Time-Lapse (Avalanche Inc.), Cells ALIVE/Quill Graphics, Indiana State Museum, United States Air Force (USAF), and Vulcan Productions, Inc.


Project Credits