Curated Video
¿Cómo se forman los ríos?
Desde el origen hasta el mar, este video nos revela cómo se forman los ríos y nos descubre por qué el río Amazonas ha llegado a ser tan grande.
Twig - Ciencias de la Tierra - Geología - Los procesos costeros
Claves de...
Curated Video
La línea de costa
La erosión de la costa genera playas maravillosas y algunas formaciones terrestres bastante inusuales, desde lenguas a farallones, o desde llanuras de marea a marismas salinas.
Twig - Ciencias de la Tierra - Geología - Los procesos...
Curated Video
Las formaciones terrestres
Descubre cómo las poderosas fuerzas geológicas han esculpido el paisaje de nuestro planeta, de las montañas a las colinas o de las mesetas a las llanuras, a lo largo de millones de años.
Twig - Ciencias de la Tierra - Geología - La...
Science ABC
What Lies Beneath the Desert Sands?
Discover what lies beneath the sand in deserts. Contrary to popular belief, 80% of deserts are not covered in sand, but rather bare earth, revealing the bedrock and clay of a dried-out ecosystem. Learn about the unique erosion patterns...
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Acid rain
Rain that is unusually acidic, with a pH less than 5. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
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Topsoil
The uppermost 5 to 20cm of soil, with a high concentration of organic matter and microorganisms, where almost all of the biological activity in soil takes place. A Twig Science Glossary Film. Key scientific terms defined in just 60...
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Coastal Processes: Waves
Coastal features around the world vary hugely. How do waves contribute to shaping coastlines? Earth Science - Geology - Learning Points. Waves are created by wind. Waves vary in size and strength. Waves break in shallow water....
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Coastal Processes
A closer look at the three key processes that shape our coasts. What are they and what effects do they have? Earth Science - Geology - Learning Points. Our coastlines are constantly being re-shaped by three key processes. Erosion -...
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Coasts: Soft Engineering
This film explores some of the Soft Engineering solutions used in coastal process management. Explore the different ways in which these solutions work, and how they complement natural processes. Earth Science - Geology - Learning Points....
Curated Video
Coastal Landforms
Coastal erosion produces beautiful beaches and some rather unusual land formations, from spits to stacks, mud flats to salt marshes. Earth Science - Geology - Learning Points. Cliffs are formed when destructive waves attack the bottom of...
Curated Video
Limestone: Features
Easily eroded by water, limestone's composition means it makes up spectacular sights all over the world. Learn about some of the surface and underground features of this rock type. Earth Science - Geology - Learning Points. Limestone is...
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How Are Rivers Formed?
From source to the sea, this film reveals how rivers are formed, and discovers why the Amazon River came to be so big. Earth Science - Geology - Learning Points. Rivers are vital to life on Earth. Rivers are formed from meltwater from...
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Waterfalls and Gorges
Waterfalls and gorges are closely linked as erosional features. Explore how each are formed and the different types of erosion at work. Earth Science - Geology - Learning Points. There are four forms of river erosion: attrition,...
Curated Video
Fold Mountains: Uses
Fold mountains provide a challenge for humans in many ways. What are the uses of this terrain around the world? And how do these effect the environment of fold mountain ranges? Earth Science - Geology - Learning Points. The impressive...
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Meanders and Oxbow Lakes
Meanders and oxbow lakes are found in the middle course of a river. Discover how a meander forms and how this process can lead to an oxbow lake. Earth Science - Geology - Learning Points. At its middle course, a river gathers water...
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Tuvalu: The Threat of Rising Seas
The inhabitants of this tiny nation state are some of the first in the world to feel the full impact of climate change. As rising sea levels threaten their whole country, what action can they take? Human Geography - Orientation And...
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Land Formations
Learn how our planet's landscapes, from mountains to hills, plateaus to plains, have been sculpted over millions of years by powerful geological forces. Earth Science - Geology - Learning Points. The planet's diverse landscape is shaped...
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Glaciers - Moving Ice Masses
Glaciers are a destructive force, moving slowly across landscapes, reshaping them as they go. Earth Science - Geology - Learning Points. Over three-quarters of Earth's fresh water is locked in frozen reservoirs, known as glaciers....
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Weathering: The Erosion of Rock by Natural Forces
The physical, biological or chemical factors that erode rock, from sand to ice, rain to plants, and even footsteps. Earth Science - Geology - Learning Points. "Weathering" refers to the breakdown of rocks into smaller pieces. Physical...
Curated Video
Coasts: Hard Engineering
This film explores some of the Hard Engineering solutions used in coastal process management. Explore the different ways in which these solutions work, and the positive and negative aspects of their use. Earth Science - Geology -...
Curated Video
Erosion
The wearing away of rock and the removal of weathered rock, soil, and other solid materials away from source. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Coasts – True or false
True or false … Coastal erosion can create sea stacks? People and places - Physical geography - Coasts Learning Points Beaches are formed when eroded sediment washes up on the coast. The geology of the coast affects the features that...
Curated Video
Coasts – Clip
Discover the extreme lengths one engineer has gone to in order to protect his home from coastal erosion. People and places -Physical geography - Coasts Learning Points The geology of the coast affects the features that develop there....
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The Earth's layers – Clip
Discover how erosion shapes Earth's landscapes and how the Grand Canyon formed millions of years ago. Physical processes - The Earth and beyond - The Earth's layers Learning Points The Grand Canyon was formed by water erosion. A Twig...