Two billion years ago, an igneous rock in northern South Africa formed. Not long after, some bacteria crawled into cracks in that rock, and got trapped inside when the cracks got plugged up by a bunch of clay. But that bacterial colony...

Over 15,000 years ago, a glacial dam broke, releasing 2,000 cubic kilometres of water across Washington State. Discover how it created the landscape we see today. Earth Science - Geology - Learning Points. Washington State's chaneled...

A dark, fine-grained igneous rock that forms most of the Earth's crust. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

Wind and Water Erosion discusses erosion and gives examples of how wind and water have shaped Earth.

This program helps students to understand what a rock is and how rocks are formed. Using real world footage, the video shows and identifies examples of minerals with crystalline structures and then shows the same minerals in common rock....

Beautiful big waterfall of Sri-Lanka. A beautiful wild world. Aerial view.

MS, Four immature southern fur seals (Arctocephalus gazella) on lichen covered rocks in rain, South Georgia Island, Falkland Islands, British overseas territory

CU, Two immature southern fur seals (Arctocephalus gazella) on lichen covered rocks in rain, South Georgia Island, Falkland Islands, British overseas territory

MS, Immature southern fur seal (Arctocephalus gazella) on lichen covered rocks in rain, South Georgia Island, Falkland Islands, British overseas territory

View of Mounument Valley in Navajo Indian Reservation

View of Mounument Valley in Navajo Indian Reservation

View of Mounument Valley in Navajo Indian Reservation

Beautiful big waterfall of Sri-Lanka. A beautiful wild world. Aerial view.

View of Mounument Valley in Navajo Indian Reservation

View of Mounument Valley in Navajo Indian Reservation

Aerial conic hill in the Negev Desert, situated near wadi meishar, Southern Negev. Near machtesh gadol and oron factory. It appears in this special form only from air. Geological structure is chalk, a form of limestone composed of the...

Aerial conic hill in the Negev Desert, situated near wadi meishar, Southern Negev. Near machtesh gadol and oron factory. It appears in this special form only from air. Geological structure is chalk, a form of limestone composed of the...

Aerial conical hill in the Negev Desert, situated near wadi meishar, Southern Negev, Israel. Geological structure is chalk, a form of limestone composed of the mineral calcite.

Les Orgues d'Ille sur Tet, Languedoc-Roussillon

HD SLOW-MOTION: Running On A Beach

MS T/L Rock formation and night sky with stars / Page, Arizona, United States

WS T/L POV View of Vessels criss cross expanse of water surrounding by strange towering island shapes fading into distance / Ha Long Bay, Vietnam

Stalactites a type of rock formation in the cave

Grand Canyon