Curated Video
How Five Billion lbs of Las Vegas Garbage Powers a City
Most the of 600 billion pounds of waste that Americans produce every year ends up in landfills. All that trash can have huge impacts on the environment. But modern landfills have found a new use for all that trash — they’re turning it...
Curated Video
Is Permafrost the Climate Tipping Point of No Return?
Arctic air is warming, causing scientists to worry that melting arctic ice and snow could also lead to a sudden permafrost thaw and release of carbon dioxide (CO2) and methane (CH4) that forms a climate tipping point or feedback loop....
Curated Video
Earth’s Climate Has Always Changed. Why All the Fuss?
If you take a look at global temperature graphs that span millions or billions of years, you can see that our planet’s temperature has made wild swings. In fact, the Earth used to be completely covered in snow and ice! So, what’s the big...
Curated Video
Greenhouse gas
Any gas in the atmosphere that absorbs and re-emits radiation in the infra-red range, so warming the atmosphere and planet's surface. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Methane
A colourless and odorless gas that belongs to the alkane group of hydrocarbons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Bunsen burner
A small gas burner commonly used in laboratories for heating and sterilising. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Reduction
Any chemical reaction in which oxygen is removed from a substance. 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...
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Chlorofluorocarbons
A class of compounds based on simple hydrocarbons like ethane, methane and propane, in which hydrogen atoms are replaced by chlorine and fluorine. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
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Hydrocarbons
Any organic compound composed only of carbon and hydrogen. 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...
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Uranus
Where does Uranus fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Uranus is the 7th planet from the Sun. Each of Uranus's 27 moons is named after a Shakespearean character....
Curated Video
Factpack: Atmospheric Gases
Discover the Earth's atmosphere: what it is and what it is made of? Chemistry - Periodic Table - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the start...
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Factpack: Digestion
Amazing facts about digestive organs. Find out what they are, how they work, and how some animals' are different. Biology - Human Body - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic,...
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Substitution reaction
A reaction in which one functional group in a molecule is replaced by another functional group. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Primeval soup
Or primordial soup, refers to the medium in which the first life on Earth may have originated. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Factpack: Hydrocarbons
An introduction to hydrocarbons. Learn how unreactive alkanes can be made into reactive alkenes. Chemistry - Chemical Industries - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or...
Curated Video
Burps and Farts
A look at the biological functions that produce burps and farts. Biology - Human Body - Learning Points. Burps are caused when swallowed air forces open the stomach sphincter and travels up the oesophagus. Farts are caused when swallowed...
Curated Video
Neptune
Where does Neptune fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Neptune is the 8th planet from the Sun. It takes Neptune 165 Earth years to orbit the Sun. Neptune has the...
Curated Video
A History of Mass Extinctions
The cause and impacts of the five mass extinction events in Earth's history, and predictions for a sixth which could end human life. Biology - Adaptation And Evolution - Learning Points. Is Earth experiencing its six mass extinction, as...
Curated Video
The Greenhouse Effect
Without the greenhouse effect, our planet would be too cold to inhabit, but it's currently a major cause of global warming. What is the greenhouse effect, and why is it such a conundrum? Earth Science - Human Impacts - Learning Points....
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Fractional Distillation - Crude Oil Separation
Learn how the industrial process of fractional distillation transforms crude oil into a variety of products, from plane fuel to road surfacing. Chemistry - Chemical Industries - Learning Points. Extraction of crude oil from Fractional...
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Clathrate Gun Hypothesis
The largest volumes of methane on Earth are frozen deep underground. Learn how global warming could melt these stores and start the irreversible process predicted by the Clathrate Gun Hypothesis. Earth Science - Human Impacts - Learning...
Curated Video
Carbon: Synthetic Diamonds
Diamonds take millions of years to form within the Earth's mantle, but now scientists are trying to produce them synthetically. Chemistry - Atoms And Bonding - Learning Points. Diamonds take a long time to form in the Earth's mantle....
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Place Like Home: Life On a Moon
The discovery of Titan's atmosphere excited scientists, who believe it could hold the key to life on Earth. Physics - UniverseLearning Points. Titan is the only moon in the Solar System with a dense atmosphere. Titan's atmosphere is 98%...
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Burning Bubbles
We investigate the properties of two types of gas bubbles: methane gas bubbles and bubbles of the gas we breathe out. The air-filled bubbles sink and we are unable to set them alight, while the methane bubbles float upwards and are...