Search results for “Plate Tectonics”

Plate Tectonics: An Introduction

In the early 1900s, most geologists thought that Earth's appearance, including the arrangement of the continents, had changed little since its formation. This video segment, adapted from the "Earth Explorer" episode of Discovering Women, describes the impact the theory of plate tectonics has had on

Caribbean: Geological powder keg

On the eastern edge of the region, parts of the North and South American plates slide under the Caribbean plate at a rate of about two centimeters per year. Even today, 16 volcanoes are still active over a long period of time. Author: ZDF/Terra X/R. Marel/S. Hillmann/C. Gerisch/A. Kindler/SpiegelTV

The Grand Canyon: How It Formed

The theory of how the Grand Canyon was formed is shown in this animation from NOVA, and features rare footage of a phenomenon known as debris flow. CREDITS: https://www.pbslearningmedia.org/credits/ess05.sci.ess.earthsys.canyon/ LICENSE: https://www.pbslearningmedia.org/help/full-license-for-secti

NOVA scienceNOW: Mass Extinction

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 considered for the mass extinction that occurred at the end of the Permian period, the scientists featured in the video thi

Earth as a System

Earth is a complex, evolving body characterized by ceaseless change. To understand Earth on a global scale means using a scientific approach to consider how Earth's component parts and their interactions have evolved, how they function, and how they may be expected to further evolve over time. This

Deep Ocean Volcanoes

Learn about underwater volcanoes and the discovery of the erupting deep-ocean volcano West Mata. The video provides students with the opportunity to visualize a phenomenon that is too dangerous and too remote to experience. Students view a visualization of the ocean floor as well as footage that cap

How microchips are made

The circuit diagrams of the chips are projected onto the plates with light. Almost like a slide. In hundreds of chemical and physical processes, billions of circuits are created on up to 100 chips per plate. Author: ZDF/TerraXpress/GO!Film/Florian Fiedler/Nathan Niedermeier/Jochen Schmidt Transla

What is lab grown meat, and would you eat it?

Imagine eating a hamburger that is in every way identical to the hamburgers you’re used to eating… except that did not come from an animal. While this may sound like science fiction, cultured meats (also known as lab-grown meat, slaughter-free meat, in-vitro meat, or even clean meat!) may be availab