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The Elements: Silicon
Discover the unique properties of silicon, which is found in many things from sand to computers. Chemistry - Periodic Table - Learning Points. Silicon is a metalloid element. Silicon is found in sand, quartz, the Sun and stars. Silicon...
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The Elements: Phosphorus
Phosphorus is a versatile element, found in our DNA as well as fireworks and fertilisers. Chemistry - Periodic Table - Learning Points. Phosphorus helps convert food into energy. Phosphorus is found in our DNA. Compounds of phosphorus...
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Factpack: How to Make a Human
Revealing the elements which make up the human body, and their relative abundance. 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...
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Anaerobic Respiration: Energy Production Without Oxygen
Cellular respiration in the absence of oxygen. Like aerobic respiration, it converts glucose into usable energy, in the form of ATP. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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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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White dwarf
A small, extremely dense star characterised by high temperature and luminosity, no longer capable of nuclear fusion. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Compound
A substance composed of more than one chemical element, whose atoms are held together by strong chemical bonds and are combined in a fixed ratio. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
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Hydrated compound
A solid compound that contains water molecules in a defined ratio. 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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Non-metals
The non-metal elements are found to the right 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...
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Photosynthesis: Converting Sunlight into Chemical Energy
The process that plants use to convert energy from the Sun into chemical energy. 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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Reducing agent
A substance that removes oxygen from, or donates electrons to, another substance during a reaction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Fermentation: Converting Carbohydrates into Other Products
The process by which microorganisms can convert carbohydrates into other products. 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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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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Exothermic
A chemical reaction or process that releases heat. 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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Northern Lights and Solar Flares
A unique combination of sunspots, solar flares and magnetic fields combine to create a visual spectacle on Earth. But what are the forces at work? Physics - Our Solar System - Learning Points. Natural light displays known as Aurora...
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Phlogiston and Oxygen
How French Chemist Antoine Lavoisier revealed the true significance of oxygen and brought about the birth of modern chemistry. Chemistry - Periodic Table - Learning Points. Antoine Lavoisier experimented with weighing substances before...
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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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Why is the Sky Blue? - Sky Color Explained
The atmospheric composition of the sky affects the colours we see. From blue horizons to red sunsets, why do we see colours the way we do? Physics - Our Solar System - Learning Points. Light is made up of different wavelengths. Our...
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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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The Elements: Iron
Iron is crucial in many areas of life: it is found in our blood, as well as being used to build bridges. Chemistry - Periodic Table - Learning Points. Iron is one of the most common element on Earth. Iron is found in living organisms....
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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...
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The Elements: Hydrogen
Hydrogen is a highly flammable element, with the potential to become a non-polluting alternative to gasoline. Chemistry - Periodic Table - Learning Points. Hydrogen is the element with the lowest density. Hydrogen is highly flammable and...
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Giant Salamander
Discover the characteristics and lifestyle of Chinese and Japanese giant salamanders, the largest amphibians in the world. Biology - Animal Kingdom - Learning Points. The two biggest species of salamander are the Chinese giant salamander...
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Why is Blood Red?
What is it in our blood that makes it red, and why are other animals different? Biology - Human Body - Learning Points. Haemoglobin is the most efficient oxygen carrier and provides the red pigment in blood. Not all animals have red...