Curated Video
Chemiluminescence
The release of light with very little heat as the result of a chemical reaction. 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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Temperate zones
The regions of the Earth in between the Tropic of Cancer and arctic circle in the northern hemisphere, and the Tropic of Capricorn and Antarctica in the south, that have less extreme temperatures than the poles and equatorial regions. A...
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Corona
The outer atmosphere of the sun. A thin, extremely hot plasma - over a million degrees celsius, compared to around 6000 degrees for the visible surface. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
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Conduction
The transfer of heat energy due to a difference in temperature, always from a hotter to cooler area. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Chemical reaction
Any process in which one or more chemicals are changed into different products, by the breaking and formation of chemical bonds. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Mercury
Where does Mercury fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Mercury is the smallest planet in our Solar System. Mercury is the closest planet to the Sun. Mercury has the...
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Factpack: Extreme Temperatures
What are the most extreme temperatures ever recorded? Where and how have they been achieved? Physics - Energy And Radioactivity - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use...
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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....
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The Elements: Mercury
Mercury is an elusive and toxic element. Chemistry - Periodic Table - Learning Points. Mercury is a rare element. Mercury is a liquid at room temperature. Mercury is highly toxic. Mercury is used in thermometers and batteries. A Twig...
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Fahrenheit (°F)
A temperature scale, used largely in the USA, on which water freezes at 32 degrees and water boils at 212 degrees. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Viscosity
The measure of a liquid's resistance to flow. 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 concepts...
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Alkaline earth metal
A group of metals that form group two of the periodic table. 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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Germination - Early Plant Growth
The early stages of growth of a plant or fungus from a dormant seed or spore. 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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Expansion and Contraction
Discover how different materials react to heat, and why this can be both useful and dangerous. Physics - Energy And Radioactivity - Learning Points. Temperature affects the size and shape of an object due to the expansion and contraction...
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Melatonin and Sleep
Melatonin regulates our sleep cycle and during puberty this hormone becomes imbalanced. Could this be why teenagers are moody? Biology - Being Human - Learning Points. The hormone melatonin regulates the circadian rhythm - the body's...
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Harmful Drugs: Cocaine
Cocaine is derived from the coca plant and is used in powder and rock forms. What effects does cocaine have on the brain and body, and what makes it such an addictive drug? Biology - Healthy Living - Cocaine is a drug derived from the...
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Planet Hunters
Scientists suppose there could be other life-bearing planets like Earth. To find them, they are looking for 'wobbling' stars. Physics - Universe - Learning Points. When a planet orbits a star, it has just enough gravitational force to...
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Beetles
Different beetles flourish in different climates. British researchers have used this knowledge to dig into climate change history. Earth Science - Human Impacts - Learning Points. Climate proxies, such as tree rings or dead beetles, can...
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Distorted Graphs: Heat wave
What does this graph show? Information is gradually built up throughout the film to show not only why some information is vital to an accurate graph, but why lack or skewing of information can lead to misrepresentation. Maths -...
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Hot Air Balloons
Hot air balloons rely on heat alone to keep them in the sky. How does this work? Physics - Energy And Radioactivity - Learning Points. Hot air rises in cool air because it is less dense. The hot air within a hot air balloon creates the...
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Gas Laws
The air we breathe is made up of a mixture of gases. Discover the invisible forces of gas at work around us. Physics - Forces - Learning Points. The air we breathe is made up of gases including nitrogen, oxygen and carbon dioxide. The...
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Harmful Drugs: Ecstasy
Ecstasy, also known as MDMA, is one of the most commonly used harmful drugs. How does the drug affect the brain and body, and what are the long-term repercussions associated with its use? Biology - Healthy Living - Ecstasy is a drug...
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Earthly Treasures: Precious Gemstones
Discover the specific conditions needed for the formation of emeralds, rubies and sapphires; and how there is now potential to 'grow' them in laboratories. Earth Science - Geology - Learning Points. Emeralds are made from beryllium....
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Red Hot: Emergency Stop
Revealed: the tremendous heat created and energy 'lost' when cars brake. Physics - Energy And Radioactivity - Learning Points. Car brakes convert kinetic energy into heat energy. When you press the car brake pad a system of levers and...