Sierra Club: How Yosemite Was Formed

Ah, the Grand Canyon ... ain't it grand? The narrator of a video from PBS Digital Studios explains, in detail, how the Grand Canyon was formed over millions of years.

This kid knows his stuff. A middle schooler explains the five-step process that occurs as a tsunami forms. He relates his tsunami research to the events that occurred in Japan in 2011. The question he poses can be discussed by you class....

Is the ice cooling down the water or is the water melting the ice? Here is a simulation that explores thermal energy transfer with iron, brick, and water. It demonstrates the flow of energy and what happens when each material is either...

Learn what the Mid-Atlantic Ridge is, how it was formed in the Triassic Period, the volcanic activity that takes place there, and the benefits and negative impact of this activity.

This video segment adapted from NOVA uses animation to present the theory of how the Grand Canyon was formed and features rare footage of a phenomenon known as debris flow.

Should wilderness areas be preserved or managed? Class members examine primary source documents, including lecture notes, articles, essays and congressional records to better understand the Hetch Hetchy controversy that created a split...

[Free Registration/Login may be required to access all resource tools.] View a National Geographic video featuring the way the Earth was formed. [1 hr. 30 min.]

John Muir was in the Yosemite Valley in 1871. These notes describe his journey, explaining much about Yosemite glaciers and the progress they've made over time.

An article describing how the sun, planets, moons, and beyond Pluto was formed. Learn more about the beginning of our solar system.

Cute manga style animated Aya is your host for this short but good explanation of valence electrons and forming ions. She explains how to know whether to add or subtract electrons when ions are forming. Note: The voice work is a little...