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Fusion
The joining together of two or more distinct parts to make a unified whole. 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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Atom
The building blocks of all matter, being the smallest unit that retains the chemical properties of an element. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Spontaneous emission
The process in which an atom or molecule produces a photon of light when it undergoes a spontaneous transition from an excited state to a lower energy level. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds...
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Atomic number
The number of protons in the nucleus of an atom. 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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Aurora
Also known as the Northern or Southern Lights. Natural displays of light in the polar regions, clearly visible in the night sky. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Electromagnetic spectrum
The complete range of wavelengths, considered as a continuum, of all kinds of electromagnetic radiation. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Nuclear
Relating to the nucleus of an atom. The 'nuclear model' of the atom is one that describes a system of a nucleus surrounded by electrons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...
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Factpack: Elements, Compounds, Mixtures
Definitions and examples of three distinct chemical classifications: elements, compounds and mixtures. Chemistry - Atoms And Bonding - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic,...
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Functional group
An atom or group of atoms within a compound that reacts in a characteristic way, giving molecules particular chemical properties. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Spontaneous
Occurring without any external influence or trigger, entirely by its own means. 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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Isotopic mass
The mass of 1 atom of a specific isotope of an element. 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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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...
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Chain reaction
A series of reactions, each the result of a preceding reaction. 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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Discovery of the Atom
The story of New Zealand scientist Ernest Rutherford, who revolutionised science by discovering the structure of the atom in 1908. Chemistry - Atoms And Bonding - Learning Points. In 1908, Ernest Rutherford conducted the gold leaf...
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The Elements: Uranium
Discover the vital role uranium plays in nuclear technology. Chemistry - Periodic Table - Learning Points. Uranium was discovered in 1789. Uranium was named after the planet Uranus. Uranium is weakly radioactive. Uranium is important in...
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Factpack: Structure of the Atom
The different ways scientists have explained the structure of the atom, and how it has changed throughout history. Chemistry - Atoms And Bonding - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt...
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Factpack: Scale of the Atom
How small is an atom? Comparing the size and number of atoms in tiny objects. Chemistry - Atoms And Bonding - 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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Alloys
What exactly are alloys? What is it about their properties that make them so useful for a huge variety of purposes, from construction to jewellery? Chemistry - Periodic Table - Learning Points. Alloys are metals mixed with other...
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What is Electricity? - Energy Movement
What is electricity? How is it created, and what makes it useful? Physics - Electricity And Circuits - Learning Points. Electricity is a flow of charge. The flow of moving electrons is known as the electric current. Voltage is the amount...
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How Do Lasers Work?
Concentrated light can be incredibly powerful and useful. Learn how laser beams are produced by controlling how atoms emit photons of light. Physics - Waves - Learning Points. Lasers are photons of the same frequency going in the same...
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The Electromagnetic Spectrum
The range of electromagnetic radiation in the electromagnetic spectrum is huge. Where does this radiation come from and how do the frequencies and wavelengths vary? Physics - Waves - Learning Points. Electromagnetic radiation is all...
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Atom Structure: Electron Shells
Learn why electron shells are responsible for the properties of elements, and whether they are stable or have violent reactions. Chemistry - Atoms And Bonding - Learning Points. An element's reactivity is determined by the number of...
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Flame Colours and Fireworks
Exploring the science behind fireworks, discover how different elements are used to produce different colours of fireworks. Chemistry - Atoms And Bonding - Learning Points. In the mid-19th century the inventor if the Bunsen burner,...
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Nuclear Weapons
How the principles of nuclear physics have been used to unleash massive destruction. How do fission bombs and thermonuclear bombs work, and what are the differences between the two? Physics - Energy And Radioactivity - Learning Points....