SciShow
Cement: A Really Hard Problem
Concrete sucks CO2 out of the atmosphere, but making it initially produces a lot of carbon dioxide as a byproduct. Fortunately, by rethinking the chemistry of cement altogether, we can actually use carbon dioxide to create our concrete...
SciShow
9 Futuristic Materials
Learn about some materials that seem like they should belong in science fiction, but actually exist today! CHAPTERS View all AEROGELS 0:46 FLOWER UNAFFECTED BY FLAME Credit: NASA 1:25 INVISIBILITY CLOAKS 2:28 LOTUS LEAF Credit: Thomas...
Crash Course
Acid-Base Reactions in Solution: Crash Course Chemistry
Last week, Hank talked about how stuff mixes together in solutions. Today, and for the next few weeks, he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in...
TED-Ed
The material that could change the world... for a third time | TED-Ed
Today roads, sidewalks, bridges, and skyscrapers are made of a material called concrete. There's three tons of it for every person on Earth. It's also played a surprisingly large role in rising global temperatures over the last century....
Crash Course
What is Physical Geography Crash Course Geography
Traditionally, geography is studied as two interconnected parts: physical geography and human geography. For the first half of this series, we will be focusing on physical geography, which is all about recognizing the characteristics of...
Curated Video
Why People Risk Their Lives Inside Mine to Build Massive Stone Stoves
Welcome back to the Fluctus Channel for a feature on the risky process of extracting stone blocks to create traditional stoves. Fluctus is a website and YouTube channel dedicated to sea geeks. Whenever you are curious or an incorrigible...
Bedtime History
The Great Sphinx of Giza
The Great Sphinx is one of the most mysterious monuments in the world! Located in Egypt near the pyramids of Giza, the Sphinx has the body of a lion and the face of a man. In this episode, we’ll explore when and why the Sphinx was built,...
Science ABC
Science of Glass Making: How is Glass Made?
Glass is made by heating sand (mostly composed of silicon dioxide) until it melts and turns into a liquid at a high temperature of around 1700° Celsius. When the molten sand is allowed to cool, it becomes an amorphous solid, featuring...
Curated Video
Caves
This brief video introduces the viewer to the different types of caves on our planet.
Curated Video
Sedimentary rock
Rock formed by the build-up of layers of sediment over time. 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...
Curated Video
Metamorphic rock
Naturally occurring rock that has been transformed by heat and pressure in 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...
Curated Video
Limestone
A sedimentary rock composed mostly of calcium carbonate; relatively soft, and light brown in colour. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Hard and Soft Water
The properties of water and its uses, depend on its mineral content. What minerals are found in water and how do they affect it? Chemistry - Periodic Table - Learning Points. Water contains dissolved mineral ions, such as sodium, calcium...
Curated Video
Rock Types - Geological Formations
An explanation of the geological processes which lead to the formation of different types of rock. Earth Science - Geology - Learning Points. There are three types of rock: sedimentary, igneous and metamorphic. Sedimentary rock forms...
Curated Video
Crystals in Caves
Discover the chemical processes occurring deep within the Earth that create beautiful crystal structures in caves. Chemistry - Reactions - Learning Points. Caves are a result of rainwater slowly carving away rock. Carbonic acid forms in...
Curated Video
Rock Cycles
Rocks are constantly on the move. Eroded by water, sinking into the sea, and ejected by volcanoes, rocks have their very own cycle of existence. Earth Science - Geology - Learning Points. The rock cycle is the process of rocks weathering...
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...
Curated Video
Quarrying: Impacts
Quarries are found all over the world, providing employment and boosting local economies. What are the various economic, social and environmental impacts? Earth Science - Geology - Learning Points. Globally, rock such as granite, marble...
Curated Video
Fold Mountains: Formation
Where are fold mountain ranges found on our planet? And how do the movements of tectonic plates affect their growth? Earth Science - Geology - Learning Points. A Fold mountain forms over millions of years by a process called orogeny....
Curated Video
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
Oceans: Coral Seas
Coral seas are the most colourful and diverse habitats on Earth, built from a unique symbiotic relationship between coral larvae and algae. Biology - Ecosystems - Learning Points. Coral reefs are found in warm, tropical oceans and are...
Curated Video
Limestone: Uses
From English farmland to Egyptian tombs, Limestone is a distinctive rock with many uses. Learn about the formation of different limestone types and the landscapes these form. Earth Science - Geology - Learning Points. There are three...
Curated Video
How Do Caves Form?
A look at caves of all shapes and sizes: how do they form? And what creates the strange stalactite and stalagmite structures that can be found inside? Earth Science - Geology - Learning Points. Caves are natural underground holes carved...
Curated Video
Rocks – True or false
True or false ... All limestone is formed underwater? Material processes - Classifying materials - Rocks Learning Points Limestone is formed underwater over millions of years. A Twig Tidbit Film - True or False? The children have to...